Q: Vibration felt through seat every 5 to 10 secs at idle turning air con on stops vibration

asked by on

I have a vw touran 2010 diesel, when I start my car in the morning it starts fine but as it gets warmer I can feel a vibration through my seat every 5 to 10 seconds at idle and some times struggles in third gear I've also noticed when I turn on the air con the vibration is less noticible what could it be...

As a car ages, things will not be the same as they were when new. There are vibrations inherent in almost every aspect of a vehicle. The fact that we feel so little when sitting in our cars is an engineering marvel. Diesel vehicles in particular are even more so prone to vibration.

As your car warms up, the idle gets lower and lower. The lower an engine idles, the more vibration will apparent. When you turn your A/C on, your car idles up to compensate for the extra load placed on the motor.

Cars use a number of methods to dampen vibration. Not only engine mounts, but balanced shafts and wheels as well as suspended weights in select locations. As these items age, they begin to collapse, become compressed, and lose their pliability. This is unfortunately a normal part of an aging vehicle. Figuring out what to replace to fix a random vibration can be infuriatingly difficult. Many times a technician can perform some pry bar tests or power braking tests to find what is not performing as new. But this is something that can be very difficult to isolate.

As for the struggles in third gear, I don’t see a connection between the two. Usually if a vibration is occurring, it will occur at certain speeds or RPM’s. Regardless of what gear the car is in. It is possible that third gear is the speed where the frequency is the strongest. Either way, this is likely going to be a difficult thing to track.

Even so, I recommend have a technician take a quick look at it. I say quick, because this kind of thing can take a lot of time with no results. The amount of time spent should be proportional to how bad you want the vibration gone.

If you decide to get this fixed, I recommend getting a certified mechanic, such as one from YourMechanic, who can diagnose the shaking/vibrating in your seat and help you fix it accordingly.

Good luck!

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Vibration felt through seat every 5 to 10 secs at idle turning air con on stops vibration

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: When pressing gas pedal car starts to shake then stops when i let go

Hello, thank you for writing in. Due to the occurrence of your symptoms being related to the acceleration of the vehicle, it is likely that the vehicle is misfiring for one reason or another and causing an engine vibration. Misfires...

Q: When i drive over a dip in the road theres a vibration/grinding in the pedal and car.also when car leans right it does.

A possibility is the motor/transaxle mounts are worn or sagging and that causes misalignment of the CV axles accounting for the noise and vibration. However, that is just one possible scenario. Vibration under acceleration could also be due to an...

Q: My Volkswagen Golf GTI is idling above 1000 revs and engine stalls

First you want to look for vacuum leaks. Any air that gets into the engine without going through proper channels can cause bad behavior like you describe. Look under the hood for broken or loose vacuum hoses or any large...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...