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<h2><span class="headline">Mercedes making noise when accelerating. Possible causes according to this forum 1.</span><small class="text-muted"></small></h2>
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<p itemprop="text">Mercedes making noise when accelerating There are no codes, no Oct 21, 2021 · Hi folks, I have a 2005, E Class 220cdi with 79,000 miles on it. The noise can be felt on a stationary or a moving car; I think it can be better heard when the car is going/pointing uphill; Noise only happens during acceleration, stops as soon as foot is out of pedal Dec 28, 2011 · I just bought 2012 ML350, and immediately noticed this "baffling" noise when accelerating to 40mph. If uncertain, seek guidance from a professional mechanic to May 23, 2019 · Ma Mercedes Benz GL Class makes a high-pitched noise when I accelerate: If your Mercedes Benz GL Class makes a loud noise when you accelerate, it is quite plausible that the alternator belt is the cause of your issue. There is one thing though that annoys me. Once you reach normal driving speeds, and Customer: 2011 mercedes e350 car has grinding sound when I hit accelerator 4Matic Mechanic's Assistant: Im sorry to hear about the grinding sound youre experiencing when you hit the accelerator on your 2011 Mercedes E350 4Matic, but the Mercedes Mechanic will be able to help you diagnose and resolve this issue. I’m losing my mind trying to find it. Definitely coming form the rear of the car. Worn or Damaged Brake Components. If you’ve noticed your Mercedes making noise when accelerating, such as strange whining, soft grinding, rattling, or Jun 9, 2024 · Rattling sound when accelerating can be caused by several factors, ranging from minor issues like loose components to more serious mechanical problems. This issue is easily noticeable as it produces a loud noise to indicate a problem with the belt tensioner. For a little over a month I have been getting a subtle clicking nose coming from the center right of the car while accelerating and turning at low speeds. I recently fixed a 2013 diesel e class that was making a similar noise (although it was much quieter) that only happened above 40 mph or heavy acceleration. e. If your Mercedes is making strange noises while driving, it’s crucial to get it inspected by a professional mechanic Experiencing strange sounds when accelerating your car? This article offers expert tips on identifying and resolving issues like squealing, rumbling, clicking, knocking, and hissing noises. Feb 18, 2020 · I've noticed for sometime that my car is making a strange noise when accelerating, like metal plates scratching or something like that. Learn how to check belts, inspect the exhaust system, and address engine combustion problems to avoid potential damage and enjoy a quieter ride. Just replaced the viscous fan so all quiet now apart from the whining noise. Belt need to be warmed up 2. Another symptom is chattering from the rear when making sharp turns. I took great care of it. This can result in metal-on-metal contact and create a rattling sound. It’s by far the most probable cause. Especially heard when not coming to a complete stop (slow down to 5mph and accelerate). Apr 4, 2012 · Tried to reproduce the noise by bouncing the car when stationary without success. Jun 7, 2022 · Symptom: a roaring / increased road noise sound which I initially thought were due to my run-flat tires but I switched them to non-run flats yesterday and it sounds exactly the same. You can hear the sound change to a loud vibration-is sound around 45 mph also. Reving the engine lightly with the hood up showed the sound came from the throttle body area. A mechanic at the dealership test-drove it and claimed the sound is normal due to the rear camera opening and closing. Everything works great. I live about 2 hours from the nearest dealership and by the time I got there, the noise was very hard to hear. May 6, 2020 · The noise in question is generated by the bypass valve in the stage2 turbo housing. Thinking prop Nov 2, 2010 · ive actually been having a similar issue. If I let go of the gas while accelerating to 10 mph, then it will go away. This is supposed to be a luxury car but it definitely doesn’t sound like one. best way i can describe it is that it sounds like a turdo charger spooling. I tried to capture the engine noise with a video inside the cabin but it was not significant. Nov 5, 2006 · Its inline-6 is almost identical to your 1996 S320. If I accelerate while sitting still it doesn't happen at all. With the car strapped to a John Deere tractor, my friend at the pedal, I crawled under it only enough to look at the front drive shaft coming out of the t-case and it was slipping upon acceleration. Getting regular oil changes is the best way to prevent this problem. Aug 16, 2017 · Such a strange noise. They took a look but couldn't find out the noise concretely on the test drive. does anyone here have a gle that can Jan 4, 2025 · The serpentine belt on your engine helps the other components in your vehicle run smoothly, but over time, it gets worn or damaged. I've got a clicking or popping noise, sounds like it's coming from the driver's side front wheel. My 2001 313cdi sprinter makes a whining noise when accelerating and decelerating - sounds a bit like and old fashioned police siren. doesn't do it when foot is steady on the throttle, but does when you start to accelerate from braking). It can be common to hear a noise coming from the undercarriage of many GL, ML and R Class Mercedes-Benz (with the years of these models varying from 2006-2012). This noise only occurs when you turn and accelerate. In this video, I cover the common causes of a Aug 20, 2019 · 2011 E350, 99,000 miles. These bearings wear down through the usual wear and tear, and the pulley starts making irritating clicking noise during acceleration. I have played with the throttle control under the hood although I just can’t locate the noise! Jul 11, 2022 · Long time reader, but first time poster here. Failing tensioner 3. Jun 1, 2023 · 2018 CLA 250 4Matic ~ 58,000 miles. It is not particularly loud but it is noticeable. Regular maintenance and timely belt replacements can help prevent this issue. My C280 developed an rpm-dependent rattle sound (kind of a plasticy rattle), most noticeable when accelerating from a stop since everything else was quieter. The noise goes away completely when I am driving at high speed usually D4 and higher. What to Do if Your Vehicle Makes a Clicking Noise? Nov 20, 2023 · The noise/vibration seems to smooth out past 3000rpm. Possible causes according to this forum 1. The boot that covers the splines by the support bearing was completely sliced on both sides so when the drive shaft got enough speed it would spin like a hulahoop and smack the shit out of Aug 21, 2005 · Just reached the 1000 mile mark on my 350 and have noticed an odd noise when accelerating, especially at low speed. I took it in and was told it was a design issue with the 2024s. Tensioner and pulleys. In this chapter, we’ll explore the most common causes of rattling noises in Mercedes vehicles, helping you to diagnose and address the issue effectively. It’s not a natural sound, and it instantly causes worry. Anybody familiar with this? I can hear it when the car is on too its just harder to hear because of engine/road noise. The dealer claims that the transfer case and transmission need to be replaced at a cost of $9k. Jun 25, 2021 · Low oil pressure is usually caused by a lack of regular maintenance on your Mercedes. I do not have the cold start clunck when reverse but I do have this clunck type noise when I come to a stop or decelerate in traffic and accelerate from low speed. This happens in first gear up to approx 2000 rpm and then 2nd, again up to approx2000 rpm and so on. Any suggestions on the best place to start investigating? Any help much appreciated. Hearing odd noises coming from your car is never a good sign. If you hear a squeaking noise whenever you accelerate, you're likely dealing with a loose serpentine belt. i recently test drived on a GLE when i took it on its test drive there was a whining noise when accelerating and when i was reaching higher speeds. Jan 26, 2011 · Hey folks. Most of the times (not every time), when I try to accelerate and turn in a corner, I could hear this thumping/clunking Feb 10, 2024 · My new to me 2018 C300 4Matic with 60k miles makes a high-pitched / whining noise when you press the gas pedal. Nov 19, 2009 · Evenin' all. The dealership ordered from Germany parts they say will "quiet" that very loud and annoying noise. Unfortunately, the noise wasn't there when I test drove the vehicle, or I would not have purchased it. There's nothing noticeably wrong on a visual. Jan 7, 2023 · Your car engine is known for making a multitude of different sounds, all of which become normal after listening to them for miles. I hope this will not be major issue. Usually it will go away after the car has been off awhile but starts back up after it has been turned on. Although you can technically drive your car in this condition, we don't recommend it. Paul. The volume of the sound increases with speed. Learn how to diagnose and fix a humming noise when driving your car. I do let off the gas briefly after the first turn, but after the second turn (left) i stay on the gas through to at least 55mph. When you accelerate, the noise will increase. i didn’t take it in and they said they’ll check it. Has anybody else every The noise happens when accelerating from a stop and sounds like a bad modified exhaust to me. Dec 3, 2024 · The rattling noise in a Mercedes when accelerating is often caused by belt tensioner problems, such as a loose or bent belt. It only does it in a shallow rev band 2000 3000rpm and then disspears. I've replaced the front driver's side half axle with no relief, so it's not the CV joint. After about 5 years, the belt may smooth out or slip off its pulleys and cause a loud squeaking or squealing noise whenever you’re driving or accelerating. Apr 30, 2025 · This distinct sound can be described as a rhythmic fluttering or slapping and typically increases with vehicle speed. Took it to a good reputable shop today, they have checked over all the mounts and possible weak spots that could cause the noise, but everything is tight. Jul 16, 2022 · These parts can develop problems and cause a clicking sound when the car is in motion. One of the symptoms is a whining sound, but it’s not quite as loud as yours. Suspension: Do you hear knocking noises when driving over bumps? This could be an issue with the struts, shocks or bushings. . Jul 17, 2008 · Since then, the car occassionally makes squealing noise when reversing out of my garage in the morning. Sep 17, 2023 · It makes an annoying noise when slowing down (breaking) that did not happen with my 2023. That’s what makes the whining noise when accelerating so alarming. He did check the camera cover and also reload software that controls the rear camera. Jan 8, 2012 · Hissing/blowing noise under acceleration. but, now it also makes a noise all the time, even when idling, kind of like a knocking or rapping. While everything else about the Aug 14, 2021 · Moreover, the rattling noises can be produced from the Mercedes-Benz while accelerating nearly any area. Can you describe when the noise occurs? Mercedes-Benz making noise when driving could be a result of worn-out or loose belts, especially the serpentine belt that drives multiple components in the engine. Aug 6, 2013 · The symptoms are the same, upon acceleration the noise forward hesitation is produced. Feb 13, 2025 · hey guys. Oct 24, 2024 · Today I was told that the "sound" is the rear camera recalibrating itself, the intensity of the noise exacerbated by the design of the smaller SUV. Mar 10, 2025 · Are you noticing a squeaking or screeching sound from your engine when you accelerate? If so, check the serpentine drive belt before anything else. If you turn without accelerating then no noise, as soon as you press the pedal it goes mental. The engine makes a rattling sound because the oil is much thinner than it needs to be and doesn’t coat your engine’s parts as well as it should. You can listen it here: What do you think it is? Likely associated with the serpentine belt. You will need to determine if this noise occurs abruptly and if it can stop as it started. Noise occurs when accelerating from a stop, worse if going uphill (more load), is proportional with vehicle speed, then goes away at fairly low speed. Let’s look at some of the most common reasons why your car is making a flapping noise while accelerating. Could this be a bad diff? Sep 20, 2019 · The blue foam has no impact on noise isolation. I noticed that the noise is worse when the engine is hot, and much less when the engine is still cold from a startup. heard a whining noise as the rpms shot up. noise is definetely coming from the front end of the vehicle. Back wheels were turning kicking up gravel. The metal valve rattles against the aluminum housing and vibrates when under boost causing the grindy metallic noise, it’s only noticeable really to the driver. It is important to inspect the V-belts and ensure they are in good condition. The noise seems to follow the gear shifting Mar 24, 2023 · Another issue I’ve experienced and im not sure if this is related to the knocking but when accelerating hard there’s a split second loss of power. If you DIY a useful check is to remove the belt and run the engine for a short time. But is this a serious problem or just a minor annoyance? The answer depends on where exactly the sound is originating from. Customer: It’s making a metal on metal noise when I accelerate Mercedes Mechanic's Assistant: I'm sorry to hear about the noise you're experiencing. Any ideas The noise can be heard only when reversing or in the first gear before acceleration. I brought the car back to dealership, and was told normal. This is a most watch video if you don't want to spend $ Jan 28, 2023 · Our final thoughts on squeaking noise when accelerating. Could it be a fan maybe? Problem. Sometimes it make it with downshift and sometime without. Sep 7, 2017 · My GL550 is making a clunking noise when accelerating from a stop sign or a traffic light. Apr 7, 2010 · when i press down on the pedal a littlle to accelerate a weird hissing whistling sound comes from the engineseems to be from the intake manifold. A grinding sound will be different from a squealing or tapping sound, which could be a timing belt. I was driving around 65-70 mph and hit the gas hard to pass someone. Loose belt 4. Thread starter mercdriver25; Start date Jan 8, 2012; M. The pulleys, for example, use bearings to turn. Is a kind of metal dragging on metal sound not a squealing sound. This only seems to occur after driving 30 minutes or so and after making a few 90 degree or more turns. I own a CLA45 2015 with 70k miles. I will record the exact noise from the engine bay that seems like being routed directly into the car cabin. Nov 27, 2024 · Mercedes making noise when accelerating could be due to belt tensioner problems, causing a rattling engine or clicking noises. It only happens when pressing the gas and then only up until about 5 to ten mph, then it goes away. That’s a poor design feature that is a big FAIL for Mercedes. I can't feel this noise on idle, engine sounds good with open hood. now i'm hearing this noise all the time when I accelerate at any speed. Sep 26, 2009 · I have a 2009 R350 with the 6 cyl engine. For example I could accelerate up to 2k revs and for a slit second it would jump down to 1k revs, losing the acceleration, before jumping back up to 2k revs. Jul 16, 2020 · Also, this generation CLA with 4Matic is notorious for rear differential failure at around 50,000 miles. Hubby took it for a run up the road when I got home and it seemed to be doing the knocking when accelerated after braking (i. There is no issue if you accelerate in a straight line, no issues with braking / stopping and then accelrating. I have a rumbling, growling sound when I start to accelerate from a complete stop. mercedes fix to this is to replace the turbo housing with new one which has a plastic valve. The source of certain clunking noises is far more concerning than others, thereby making continued driving unadvisable. i’ve also seen reviews saying its a quiet car so i don’t know if this is normal. They let me ride with one of the technicians to point out the noise. If your Mercedes makes a squealing or grinding noise when braking, the brake pads or rotors may be worn out. If the pedal is pushed any more or any less, the sound goes away. When you turn the steering wheel on your Mercedes-Benz, you may hear a loud squeaking or weird whining noise. Mar 5, 2012 · I'm also having the same issue. Oct 12, 2009 · The car has 72k miles, I cant seem to figure out why when first starting out, the engine starts excessively loud, I know it wouldn't be silent but for a MB I wouldnt expect this much noise. :( Any ideas? Many Thanks. May 6, 2025 · Common Reasons Your Mercedes Is Making a Loud Noise While Driving 1. If I accelerate hard in 3rd or 2nd gear from 2000rpm upwards, as the boost comes on, I get a rumbling noise from the back end of the gear. When diagnosing a noise from the engine, it is crucial to narrow down the sound it is making. I am thinking of trying a sound deadening/isolation sheet around this area to snub the noise. Can you please tell me the model and year of your Mercedes? Customer: Ml350 2011 Mechanic's Assistant: Thank you for providing the model and year. The noise seems to be coming from the engine compartment. I need some help. most notably at low speeds when i'm trying to get her going. Apr 9, 2019 · Update : I got the transmission mount replaced yesterday and this “putting “ noise has reduced by 1/3 ! However I still hear the putting noise and feel very slight vibration when the engine rev at 1500- 2000rpm going up hills, . It calms down after warming up but when accelerating it's almost like a whining noise coming from the engine bay. Jan 21, 2016 · The noise occurs ONLY under acceleration and ONLY when the accelerator pedal is pushed down between 10 – 15% of its travel. Oct 17, 2018 · I just got a new sound while accelerating It sounds like air rushing through a screen I've checked under the hood and underneath no codes on the Scan gauge everything seems ok no noticeable performance problems everything seems fine it just sounds like air rushing through a screen while accelerating I've replaced the fan/clutch assembly a Car Makes Humming Noise when Accelerating. It is a pretty horrendous noise that no one can ignore! Mechanics who are not specialized in the repair of Mercedes-Benz are replacing wheel bearings or wheel hubs. i havent the foggiest idea what the hell it is May 18, 2021 · I ended up taking it to a Mercedes dealership to get diagnosed. Oct 11, 2024 · Engine: A knocking noise coming from the engine can mean a seized engine or when accelerating and can indicate a problem with the fuel-air mixture or the timing of the engine. Aug 6, 2009 · My ML320 has been making a barely audible high pitched noise that occurs even when the ignition is turned off. It's hard to describe but it's a low rumbling with associated slight vibration only when the accelerator pedal is pushed. Feb 9, 2018 · My local dealer is not really serious and say it’s normal. . When I turn the vehicle left while at speed the sound disappears completely (but not when I turn right or keep straight). I drove for two weeks and Customer: I have a 2019 Mercedes Benz Gla 250, I have been noticing a slight noise when I accelerate and decelerate, also when I stop the car I feel a forward jerk when the transmission goes from D2 to D1, and the noise is louder when I make a turn. There is a whining/whirring noise coming from the front when accelerating. almost like air is leaking out of somewhere. Your Mercedes C220 CDi Auto (w203) Jan 8, 2012 #1 Hi guys, Feb 6, 2011 · There's a horrible scraping sound that's very noticeable at low speed (isn't present when idling). On the other hand, certain issues that are known to cause clunking noises, will not prevent you from driving, albeit temporarily. In this guide, I cover each of the causes in-depth. The noise is a common problem with Mercedes-Benz E-Class, S-Class, C-Class, and ML-Class, and it is most noticeable when you first start up the car. Feb 16, 2022 · The engine is another area that has many different components that can cause your vehicle to make a grinding noise when accelerating. car just sat for a week Oct 30, 2023 · This type of issue is best answered on a case-by-case basis. Generally, such noises are significantly varying in Mar 22, 2017 · As the title says. At around 70Mph I get a slight vibration through the steering wheel. my engine was making the "valve noise" when i would accelerate. It is pretty loud and irritating, just like when you lower your car windows and the airborne sound you heard. Sep 13, 2024 · My new 2024 GLC-300 has a noticeable clunking noise coming from the rear, usually when accelerating from 3rd to 4th gear. Open the hood. Increasingly over the last few months it has developed a whine as you are accelerating. You will notice a piercing sound that follows your engine speed. In this video #1 I'll showing and explain the noise been fix for the Mercedes-Benz SUV transfer case. The car is quite noisy when accelerating briskly sounds something like a turbocharger kicking in. Damaged engine mounts or suspension components can also Jan 4, 2020 · Hi all. Nov 6, 2018 · My daughter's 2011 GLK 350 has about 103k miles. Turning left makes more noise than turning right. I inspected brakes and rotor bearings and I Jul 19, 2022 · Hi all, My GLA180 (2019) has started making a rather noticeable whining noise when I accelerate within the 30-50mph region (the only way I can describe the noise is like the noise you hear when a plane starts setting off??) - on any drive mode and in any gear. 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