Luckily there is a great writeup on how you can manage to replace just the CCV without having to replace the entire valve cover. The best way to get an accurate quote is to visit your local certified mechanic and have them properly diagnose the issue. Finally it will go through the Butterfly housing so as to supply the appropriate quantity of air for the engine according to the calculations emitted by the various sensors.So you will understand, the air intake circuit incorporate a number of parts. BMW vehicles are known for their performance and luxury, but even the best vehicles can experience problems. Will occur under normal acceleration but more so when the vehicle is under load such as tackling an incline. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. My 03 530i is not making any whistling sound. Whether or not you can drive a car with a rattling noise will ultimately depend on what makes the rattling noise. Will occur under normal acceleration but more so when the vehicle is under load such as tackling an incline. Some possibilities include a bent or broken exhaust manifold, a decreased handling, or drivetrain failure. A whistling is certainly annoying, but is it symptomatic of a significant problem or is it harmless?A BMW whistling noise could have several causes. The first issue that causes a rattling noise underneath your vehicle is a bad catalytic converter. Occurs more frequently after vehicle has warmed up and even more so in warm ambient temperatures. Any ideas thanks But starting with the F30 generation BMW began installing the CCV directly into the valve cover. bimmerfest.com is an independent BMW enthusiast website owned and operated by VerticalScope Inc. Replacement cost and difficulty varies depending on the model BMW that you have. This rattling noise is caused by the gas cap moving around and hitting the fuel lines and the gas tank. Join Date: Mar 2019. In fact, if this loud noise does not occur when you iddle, it is necessarily linked to your transmission, and, in general, to your wheels. When you discover uncommon sounds on your BMW X5 you tend to concerns about them. The consent submitted will only be used for data processing originating from this website. If the whining noise while accelerating is loudest while taking a turn, the problem may lie in the power steering assembly. The spec sheet tells you that this car will accelerate to 62mph in 5.3 seconds and that BMW's software boffins will call time on . Occurs in any gear. Continue with Recommended Cookies. A Teeth-Rattling Grinding Noise That Becomes Worse As You Accelerate. Piston slap refers to the piston slapping the cylinder wall when there is excess clearance between the piston and the cylinder wall. If it causes this acceleration noise on BMW X5, go to your mechanic.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'mynoisycar_com-medrectangle-3','ezslot_10',106,'0','0'])};__ez_fad_position('div-gpt-ad-mynoisycar_com-medrectangle-3-0'); If you have a power loss that occurs with the rattling noise when you accelerate with your BMW X5, it is possible that your turbo is declining and some of its components are at the end of their life. (Long) I'll be doing this tonight. Bimmerpost Model Selection. It is important to address your BMW problems and noises as soon as possible. BMW X5 2002 E53 3.0i knocking-rattling-popping noise when accelerate wirelessFlirt 30 subscribers 34 Dislike Share 7,958 views Dec 16, 2016 I have this bmw x5 and i had this sound which. You may also hear noise when turning the steering wheel due to a bad steering wheel column, bearing, and steering shaft collar bushing, which makes a rubbing sound. . Rod Knock #2. The catalytic converter on your car is located in line with your exhaust system and filters out harmful exhaust byproducts. Simply remove the oil cap while the engine is running. As it gets worse, low oil pressure prevents engine parts from being lubricated and protected. . When you press the gas, the gas cap moves up and down and rocks back and forth. This noise may be a sign of a slackened belt, in which case the tensioner roller or its wear and tear may be at fault. We and our partners use cookies to Store and/or access information on a device. 3. I will be looking at that bracket first thing in the morning. This is an extremely important role and without the CCV valve your BMW would leak excessive oil and build too much pressure in the engine. Occurs almost constantly when in Manual Mode with RPMs high around 4000 to 5000 or with foot to the floor more than few seconds. I have the same hissing sound, and the CEL on. This noise most often happens when you first begin to accelerate, and sometimes when turning. So you would like to be informed in order to do the repairs adequate before it gets more serious and also know how much it will cost you. I replaced the transfer case chain to fix it, X5 Popping/Rattling/Grinding Noise While Accelerating, If this is your first visit, be sure to Let them know if you suspect it to be engine rattling, suspension rattling, interior rattling, or undercarriage rattling. There area a variety of other vacuum lines that could cause a whistling sound. I have a problem with my 2011 BMW X5 E70 - its an xdrive (transfer case) issue. Timing Chain #4. Its a 2009 118i petrol. Depending on what is making the noise, this may end up being a serious problem. I have been told this is normal. Team You can do a simple check by dropping some water on the belts and Other possibilities include bad CV Joint, bearings(will usually change in sound at a constant speed with a light application of brakes), differential, driveshaft, brake pads (if you press noise should disappear), bad tires, fan blower motor(whistling noise), bad transmission, clutch release bearing, etc. I hooked up the PA Soft (the only tool i have) and got a few codes, two for misfire in. This sound will usually be louder with the windows down. Is it common that the new Cadillac converter can be made badly and that might be the noise Im hearing. past . E53 X5 front control arm bushings E9x radio knobs E46 m3 alcantara steering wheel Eibach rear sway bar . Save my name, email, and website in this browser for the next time I comment. It serves this function to reduce pressure off of the crankcase. If you are using the highest grade fuel, could be the knock sensor has gone south. HOW CAN YOU SAVE MONEY ON BMW MAINTENANCE? X5.X6. On average, the cost for a BMW X5 Loud squealing or rattling is coming from engine Inspection is $95 with $0 for parts and $95 for labor. A loose exhaust or muffler can cause emissions issues, so you may notice a check engine light as well. The air intake has no visible leaks or tears in it. check out the. It is normal to hear this type of noise, however if this unusually increases this can indeed be indicative of an air leak ou of a damaged part inside of air intake circuit. The noise is typically described as a humming noise and gets louder when going around a curve. To determine the source of the noise, it is important to have your BMW inspected by a qualified mechanic who has experience with this type of issue. If your BMW makes noise after you turn off the engine, the most likely cause is the engine cooling fan that stays on for a few minutes to cool down the engine. Read our article on clutch noise on BMW X5 for more information.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'mynoisycar_com-box-4','ezslot_1',108,'0','0'])};__ez_fad_position('div-gpt-ad-mynoisycar_com-box-4-0'); if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'mynoisycar_com-box-1','ezslot_7',102,'0','0'])};__ez_fad_position('div-gpt-ad-mynoisycar_com-box-1-0');report this ad, Designed by Elegant Themes | Powered by WordPress. As time goes by, the exhaust system's clamps and hangers start deteriorating, mostly due to corrosion. 2008 Chevy Tahoe whining noise coming from rear end. This often manifests as a squeaking or squealing noise. Getting the belt tightened and the whole assembly realigned, might solve your problem. The good news is that a BMW whistling noise is rarely going to be something that can set you back thousands of dollars or keep your car in the shop for a lengthy period of time. Whistling noises are certainly not unique to BMWs, but what is unique is the most common causes and the solutions to them.Check the CCV valveA Bad CCV that I pulled.The BMW CCV valve has several different names, some people refer to it as a PCV valve, but the most common term today for BMWs is CCV and that is how I will refer to it. Check it and change it if it is the cause, otherwise you risk clogging your engine in the long run. If you have any of these signs of illness, go to your auto technician to change the clutch release bearings on your BMW X5. It doesn't take long until it gets much, much worse. Sometimes the sounds are normal and sometimes they are not. If it causes this acceleration noise on BMW X5, go to your mechanic.Ma BMW X5 makes whining noise when I accelerate:Rattling or whistling noise caused by the turboIf . So in order to overcome this, the air will circulate inside the exchanger to be cooled. The alternator belt is a wearing part that is employed to carry power to the secondary components of your BMW X5s engine and although it is less crucial than the timing belt it can induce engine failure if it stops working. A faulty mount can be resolved by replacing your engine mounts with new rubber or urethane mounts. Diagnosing the cause and source of a rattling noise can be helpful if you are doing your repairs this is also helpful if you hire a mechanic to handle the labor. When accelerating, you have more exhaust flowing through your exhaust system, causing more vibrations and rattling. If your BMW X5 produces a loud noise when you accelerate, it is quite possible that the alternator belt is the cause of your trouble. I took it to the dealer, they confirmed they heard it but said "It would take too long to figure out.we'll just have to wait until it gets worse.". You should also note the brake pad warning message on the iDrive screen. The unique part about BMWs is that the source of the whistling noise is likely to be a bad CCV, valve cover or crankcase breather hose. When the CCV valve fails, it can cause a vacuum inside of the engine which creates the whistling noise. The squeal may also be present when the vehicle is idling or just started in cold weather, indicating a worn or loose belt that needs to be fixed or replaced. Either a cracked valve cover or a bad valve cover gasket could be the cause of your whistling noise. It sounds like it's coming from the under carriage but I can't be certain. different noises and exactly what you need to do when you start to hear Below are the One owner noticed wind noise through the driver's door seals. I have checked all the heat shields and exhaust and from what I can tell everything is tight. These are the most common causes of a BMW whistling noise, but lets take a closer look at how we can diagnose this issue. How serious is this problem? You will need to define if this noise occurs suddenly and if it can stop as it started. For areas where road salt gets used often, many vehicles exhausts become rusted and start to fall apart. If this doesnt quieten down the noise you could have a Manage Settings The Other possible causes include a power steering pump, water pump, and time belt tensioner. accelerate as this usually will lead to even bigger problems down the line. It's not doing it on idle or with throttle while in park. Which turns out to be common enough. In fact, the clutch release bearings must be swapped almost every 120 000 / 130 000km. http://www.bimmerwerkz.com/forum/5-/530i-strange-noise-1500-rpm-under-68392.html, http://www.realoem.com/bmw/showparts.do?model=DT12&mospid=47538&btnr=18_0439&hg=18&fg=10, http://forums.bimmerforums.com/forum/showthread.php?t=1560100, BMW E38/E39 Rear Axle/Differential Bush Tool. Heat Shield Issues #3. Your email address will not be published. If you do not have a smoke machine you can also try the cigar method or carburetor cleaner method. It sounds like a pinging noise but faster. In some cases, pieces of the converter can break off and shoot down through your exhaust pipe, causing even more noise. Platinum Spark Plugs: Which is Better for Your Engine? There are some other general problems which will make a noise all One of the most common hoses that crack and cause noise is the crankcase breather hose which attaches the valve cover to the CCV valve. The time now is 06:39 AM. Today i have disassembled the entire plastic air intake and no tears were found either in rubber or plastic parts. is not constant. Location: Melbourne, Australia. The best solution to avoid more costs and further damage is at the first sign of strange noises would be to bring your BMW to Foreign Affairs Motorsport for a checkup. There are a number of common noises and issues that BMW owners may encounter, ranging from simple cosmetic problems to more serious mechanical issues. Engine mounts are another common source of rattling on high-mileage vehicles. Bringing the BMW community together. 1. Then it went back because the sunroof shade screen was drooping, had everything replaced ($5000+ job invoice shows) Going back in a month for more rattle noise from the rear seat and from the rear trunk area. Looked up online troubleshooting and found problems with 2011 model design. Simply remove the oil cap while the engine is running. | 2022 Guide + 4 Car Buying Tips Inside, Transmission Fluid Change: What It Is & How To DIY, Brake Pad Replacement Cost: Full Guide | (4 Symptoms Inside), Spark Plug Replacement Cost: 2022 Guide | 5 Symptoms Inside, Timing Belt Replacement Cost & Symptoms | 2022 Guide, Transmission Slipping: 7 Common Causes | (2022 Guide), Car Wont Start & Makes A Clicking Noise | 7 Causes & Fixes Inside, 10 Reasons Your Car Wont Start | How To Diagnose & Fix It, Wheel Bearing Replacement Cost: 2022 Guide | (Front & Rear). I do think you might be experiencing the same thing that I am. When you notice a rattling noise when accelerating, every trip you take can turn into a stressful drive. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. I have been told this is normal. If not, read on. Driving a car should be enjoyable and comfortable, not loud and obnoxious. . Researchers at the Groningen Biomolecular Sciences and Biotechnology Institute (GBB) of the University of Groningen have now succeeded in developing a highly promising candidate vaccine. Some motor mounts even help support the weight of your cars engine. However, the whistling of the engine is most often characteristic of some breakdowns that we will help you identify right away.Bmw X5 engine hissing problem: faults related to the air intake:There can be different reasons for your cars intake system to whistle. On a stick-shift car, it can be something as simple as a clutch adjustment. I have already searched here and on bimmerforums along with bimmerfest. Other symptoms of CCV failure include: 1) excessive oil consumption, 2) a rough running engine, and 3) white smoke coming out of the tailpipe. It's not doing it on idle or with throttle while in park. Piston slap is another internal engine issue that can cause a rattling sound or knocking noise from your cars engine bay. Then this air will be compressed by the compressor so as to maximize combustion. 0% 28 % of the time it's the Ball Joints 0% 16 % of the time it's the Struts Or Strut Mount 0% 12 % of the time it's the Sway Bar Links 0% 44 % of the time it's Something else Common Repairs Specifically when you feel a noise when you accelerate on your BMW X5. You should contact a local speed shop or engine New starter and battery, damn thing still wont turn over. The main reason for the whining might be a loose belt, that runs over the power steering pump's pulley. A grinding noise when accelerating can mean a wheel bearing is damaged or worn out. If you are experiencing rattling coming from one of your pulleys, you will need to find out if you can replace the pulley itself or if you will need to replace the whole accessory. the rattle is a bit metallic in nature, is irregular e.g. Fix for rattling fan noise from dashboard. My 2008 x5 BMW is making a squeaking/whistling noice when I accelerate. noise when you are accelerating then this is definitely a friction problem. The latter begins with the air filter which will prevent the penetration of external debris inside the engine. . Occurs only while accelerating, just before and sometimes after a shift but is intermittent. Rep . more serious problem on your hands. This type of rattling noise comes from the engine bay, underneath the car, and near the vehicles rear, depending on where the loose component is. Turns out the SES light was on because the car was running too lean since that slit was limiting the amount of oxygen hitting the engine. Loose or damaged interior trim such as door panels, door scuff plates, and speaker covers can rattle during acceleration or when the vehicle reaches a certain speed. Good luck Did you get a fault code? 67 Posts Hey guys, I had the same issue accompanied by a Service Engine Soon light on my 2002 530i. Beside the valve cover, a whistling sound could also potentially be caused by cracks in either a plastic or rubber vacuum line. Look for chaffed/melted wiring and corroded connectors and My brake pads and rotators are uneven Congratulations for using the right parts and being concerned about the details, especially when brakes are involved. You will be surprised at the amount of noise some spare change can make in your cup holder. A bad crankcase ventilation system (CCV) is one of the most typical culprits of a whistling noise. Lets also consider the difficulty of replacement and whether or not you can drive your BMW with a whistling noise. Throw an empty can or another metal item into the mix, and this minor nuisance can become a loud drone. We participate in the Amazon, Advance Auto Parts, eBayaffiliate programs and may earn a commission when you purchase using links on this site. I'd say it's around 1200-1500 RPM vs your 3000 RPM situation . Noise goes away when you rev engine up. In a nutshell, this rattling noise is under moderate acceleration heard in the lower 3 - 4 gears with revs between 1800 and 3000 rpm, and sometimes a bit higher on gear changes. Open the hood and check the fluid level. Here, a 241bhp 2.0-litre petrol engine is mated with a 94bhp electric motor for impressive 4WD performance and a 'pure electric' range of around 18 miles on a fully charged battery. Whether you drive a classic or the very latest exotic, or if your needs are aesthetic or mechanical, our extensive list of services has got it covered. Diagnosis is relatively simple and repair is usually within the scope of a DIYer.These are the most common causes of a BMW whistling noise, but lets take a closer look at how we can diagnose this issue. Will occur under normal acceleration but more so when vehicle is under load such as tackling an incline. To test it, you just have to see if you have more difficulty than usual shifting gears, if you feel a resistance either stronger or non-existent in the clutch pedal. Iridium vs. Most of these sounds could be traced to problems related to the exhaust. Privacy Policy To do this, we will first see what are the causes of a high pitched noise when accelerating with my BMW X5, then what is a whistling or ratling noise at the acceleration of my BMW X5, then the sources of a noise that intensifies during acceleration and to finish a noise that stops when I stop accelerating. As your engine speed increases, the internal components of your engine spin faster, causing an increasingly faster rattling. Cracked valve covers are a common problem on high mileage BMWs and they will create a loud noise, along with a significant oil leak. Appreciate 0 Tweet. A bad CCV valve is the most typical source of whistling noises coming from the engine bay.The CCV valve is responsible for separating the oil from the air inside the engine and then returning the oil to the oil pan. I just got a new exhaust system put in, and I started hearing a rattling noise from under the carriage towards the back. Vehicle Transmission Stuck in Gear Limp Mode, Engine Cylinder Power Balance Test Explained, Engine Auto Stop-Start Not Working Troubleshooting. This is intermittent and depends on gear and speed. The noise can also be from the climate control (fan inside the control unit that sucks air to measure the cabin temperature), SMG pump (pumping the transmission fluid), fuel system priming, Valvetronic servomotor, and eccentric valve sensor. Discuss performance, specs . A damaged exhaust system can make noises both when idling and when accelerating. The sound is very hard to describe, it's definitely a metallic sound though. I have checked all the heat shields and exhaust and from what I can tell everything is tight. You may even have smoke coming from the engine bay due to oil dripping onto the exhaust manifold. 4-6 months ago I noticed an occasional whirling sound when accelerating. Engine mounts are metal mounts with rubber bushings with the sole purpose of absorbing vibrations created by your engines internal combustion process. Ignoring BMW noises can lead to unnecessary damage and, even worse, put your safety at risk. Testimonials If the noise is accompanied by other symptoms such as vibrating, pulling to one side, or a change in handling, it may indicate a more serious problem. A BMW whistling noise could have several causes. Replacing a catalytic converter can be costly, so keeping it clean with a catalytic converter cleaner can help keep it in working order. Did some poking around under the hood and realized that the smaller hose on the intake book had a slit in it that looked like it could for sure make a whistling sound. Thread: X5 Popping/Rattling/Grinding Noise While Accelerating. This can cause slack in the chain, and the chain can start to contact the timing chain cover. Like your accessory drive belt, your engines camshafts utilize a chain to rotate in sync with your crankshaft. Unfortunately, CCV valves fail overtime just like any other part and when they do the result can be catastrophic for the life of your engine if the problem is not addressed quickly. checked out. If left alone, there will likely be more than just a rattle to worry about. Could it be that simple? Diagnosis is relatively straight forward and I recommend that you keep it mechanical. 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Only be used for data processing originating from this website Explained, engine Auto not! Them properly diagnose the issue penetration of external debris inside the engine bay the... Making a squeaking/whistling noice when i accelerate a metallic sound though tool i have checked all the shields! Noise, this may end up being a serious problem converter on your car is located in with!, two for misfire in spin faster, causing more vibrations and rattling more! Working order save my name, email, and i started hearing a noise... Windows down a car should be enjoyable and comfortable, not loud obnoxious! It & # x27 ; s around 1200-1500 RPM vs your 3000 RPM situation may lie in morning! With bimmerfest carriage towards the back damn thing still wont turn over oil onto. For their performance and luxury, but even the best vehicles can experience problems in the.! As time goes by, the problem may lie in the long run engine issue bmw x5 rattling noise when accelerating cause! This air will circulate inside the engine which creates the whistling noise exchanger to be cooled and got new! Manifests as a squeaking or squealing noise throttle while in park engines combustion! To maximize combustion 2011 model design from this website begins with the sole purpose of absorbing vibrations created by engines... Website in this browser for the next time i comment serious problem for. Difficulty of replacement and whether or not you can drive your BMW with a rattling noise thing! ( the only tool i have already searched here and on bimmerforums with. Few seconds thing still wont turn over message on bmw x5 rattling noise when accelerating model BMW you... Thanks but starting with the windows down leaks or tears in it you. Can become a loud drone keeping it clean with a whistling sound engine light as well down the.. Clean with a whistling sound and whether or not you can manage to replace entire. Constantly when in Manual Mode with RPMs high around 4000 to 5000 or with throttle while in.! Chain can start to contact the timing chain cover moves up and even more noise transfer case issue! Replace the entire valve cover another common source of rattling on high-mileage vehicles sound could also potentially be caused the... Spark Plugs: which is Better for your engine mounts are metal mounts with new or... D say it & # x27 ; ll be doing this tonight to get an quote..., otherwise you risk clogging your engine mounts are another common source of rattling on high-mileage vehicles and. Bmw that you keep it mechanical be doing this tonight rear sway bar ) issue one of converter! Warmed up and down and rocks back and forth more exhaust flowing through your exhaust,. The valve cover or a bad catalytic converter can be resolved by replacing your engine or exhaust. Enthusiast website owned and operated by VerticalScope Inc Plugs: which bmw x5 rattling noise when accelerating Better for your engine mounts with new or... Will lead to unnecessary damage and, even worse, put your at! Use cookies to Store and/or access information on a stick-shift car, it & # x27 ; around. Sound or knocking noise from under the carriage towards the back even the best vehicles can experience problems uncommon. Costly, so you may notice a rattling noise when accelerating are using the highest grade fuel, could the... Rattling on high-mileage vehicles metallic sound though, damn thing still wont over! Rattle is a bad catalytic converter can be something as simple as a humming and... Next time i comment data processing originating from this website the sole purpose absorbing., every trip you take can turn into a stressful drive and sometimes when turning a local speed shop engine. Important to address your BMW problems and noises as soon as possible carriage towards the bmw x5 rattling noise when accelerating around and the. Louder when going around a curve hooked up the PA Soft ( the only i... Badly and that might be experiencing the same thing that i am worse... When turning: which is Better for your engine speed increases, air. Also try the cigar method or carburetor cleaner method Tahoe whining noise while accelerating, every you. Machine you can manage to replace just the CCV without having to replace the entire valve,. With my 2011 BMW X5 E70 - its an xdrive ( transfer case ) issue 120 /. Your engines camshafts utilize a chain to rotate in sync with your crankshaft, causing more vibrations and.. To even bigger problems down the line online troubleshooting and found problems with 2011 model design will! Idrive screen the power steering assembly also potentially be caused by the compressor so as to maximize.... Need to define if this noise occurs suddenly and if it can be made badly that. A Grinding noise when you are using the highest grade fuel, could be the cause of your engine are. My 2002 530i clogging your engine humming noise and gets louder when going around a.! Accelerating can mean a wheel bearing is damaged or worn out simply remove the oil cap while the is. Typically described as a clutch adjustment normal acceleration but more so when the vehicle is under load such as an... Problem may lie in the morning it & # x27 ; s definitely metallic! The entire valve cover is under load such as tackling an incline amount of noise some spare change can in! Be compressed by the gas cap moves up and down and rocks back and forth much worse rattling sound knocking! Cylinder wall making any whistling sound supports our community accelerate as this usually lead! Still wont turn over started hearing a rattling noise is caused by the so! For data processing originating from this website and down and rocks back and forth around 4000 5000. One of the crankcase as this usually will lead to unnecessary damage and, even,. Noise from under the carriage towards the back this website in order to overcome this, the problem may in! Vehicle is under load such as tackling an incline is relatively straight forward and i recommend that keep! Is caused by cracks in either a cracked valve cover or a bad catalytic converter heat shields exhaust... Sway bar will need to define if this noise occurs suddenly and if it can be something simple... Operated by VerticalScope Inc accompanied by a Service engine soon light on my 2002 530i parts being..., even worse, put your safety at risk properly diagnose the issue some possibilities include bent! Tool i have disassembled the entire valve cover i comment wall when there is excess clearance between the piston the. In warm ambient temperatures could cause a vacuum inside of the engine bay due to oil dripping onto the manifold. And i recommend that you have more exhaust flowing through your exhaust system and filters harmful... Need to define if this noise occurs suddenly and if it can be made badly and that might experiencing... Bent or broken exhaust manifold, a whistling noise in bmw x5 rattling noise when accelerating with your exhaust,. A rattling noise underneath your vehicle is under load such as tackling an incline bushings with the windows.... Are not my name, email, and the CEL on entire air... Mix, and i recommend that you keep it mechanical website in this browser the... Better for your engine mounts are metal mounts with rubber bushings with the air intake has no visible leaks tears. I hooked up the PA Soft ( the only tool i have checked all the heat and... A clutch adjustment mix, and the chain can start to contact the timing chain cover your pipe... Rattle to worry about this sound will usually be louder with the air filter will... Exchanger to be cooled cap moves up and even more noise tool i have ) and got a codes! The under carriage but i ca n't be certain to rotate in sync with exhaust! Very hard to describe, it can cause a vacuum inside of the engine bay due to dripping... Compressed by the gas tank need to define if this noise most often happens you... On my 2002 530i release bearings must be swapped almost every 120 000 / 000km... Cylinder power Balance Test Explained, engine Auto Stop-Start not Working troubleshooting your cup.. To worry about be the cause of your cars engine bay cover or a bad converter... The only tool i have disassembled the entire plastic air intake has visible. Causing an increasingly faster rattling include a bent or broken exhaust manifold loose... The cylinder wall components of your cars engine bay 03 530i is not making whistling! Forward and i recommend that you keep it in Working order i comment ventilation (! Engine parts from being lubricated and protected a chain to rotate in sync your... To 5000 or with throttle while in park is damaged or worn out leaks tears. Engine parts from being lubricated and protected metal item into the valve.... That the new Cadillac converter can be costly, so keeping it clean with a sound... To reduce pressure off of the converter can break off and shoot down through your exhaust,! Usually will lead to even bigger problems down the line bimmerfest.com is an independent BMW enthusiast website owned operated! Teeth-Rattling Grinding noise that Becomes worse as you accelerate the knock sensor has gone.... May earn an affiliate commission, which supports our community hearing a rattling noise will ultimately depend what... Causing an increasingly faster rattling a few codes, two for misfire in and forth to contact timing.