Volkswagen Tiguan Vibration on Acceleration
Vehicle: 2015 Volkswagen Tiguan AWD, Odometer 160,000km.
Symptoms: Vibration on acceleration from a stop, kind of wobble side to side motion of vehicle. Vibration is felt throughout the car, especially on front seats and is present only under load. No vibration on steering wheel and no vibration on high speed. Also, no vibrations when vehicle is not under load (ie, accelerator pedal is not pressed).
Diagnostic: Front CV Axle failure (leaking grease from left front axle but no symptoms on right axle) and transmission mount. Transmission mount was replaced with a new original VW part. Both front CV axles were replaced with aftermarket parts. Vibrations persisted just the same, almost no changes after replacing front CV axles and transmission mount.
Left and right front CV axles were replaced again, this time with a different aftermarket brand. Vibrations again stayed constant with very little changes, if any at all.
Volkswagen Tiguan Vibration on Acceleration – Solution: Front CV axles replaced with original Volkswagen parts. Vibrations disappeared, vehicle runs and drives fine. These cars do not like aftermarket CV axles. Quality of aftermarket axles is not on par with Volkswagen specifications and will cause vibrations on acceleration and under load. Most (cheap or cheaper than OEM) aftermarket parts are more or less the same, recommended specifications are far off from OEM and quality control is non existent.
Vibration was narrowed down to failure of right inner CV joint (passenger side front axle). On first glance axle showed no signs of visible wear or leaks and looked completely fine.
If you have a similar problem, before chasing your own tail with aftermarket axles you should install only Volkswagen OEM CV axles. While OEM axles are at least triple the price of aftermarket ones, experimenting with aftermarket axles will be waste of time and money in labour which costs more in the end.
In any case, same goes for other Volkswagen and Audi cars or SUV, this issue with aftermarket axles in not limited only to Tiguan.
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