2000 VW Passat GLX transmission "pothole"


#1

I have “new to me” 2000 VW Passat GLX (station wagon). Intermittently at @ 30 mph it will make a thunk and momentarily “brake” as if it just hit a pot hole. I assume its transmission related, but what am I looking at to repair it?


#2

Loose engine/transmission mounts might be the cause. The other possibility is suspension problems.

A competent mechanic should thoroughly inspect the underside of the car first. I hope it’s an easy to remedy problem.


#3

Personally, I doubt if the problem is transmission-related.
I like Docnick’s theory about loose engine or transmission mounts, but there is another possibility that comes to mind…if this vehicle has Electronic Stability Control (anti-skid system).

Recently, Honda issued a large recall on ESC-equipped vehicles that were…guess what…suddenly and unexpectedly applying the brakes (briefly) while driving down the road. The cause of Honda’s problem is a malfunction of the ESC, and if Honda has identified this problem then it is possible other mfrs also have this problem, but have not yet identified it.

Offhand, I am somewhat doubtful that any VWs came equipped with ESC for the 2000 model year, but if this car has ESC, then this may be something to consider.


#4

If an automatic, I’m thinking this is a transmission problem of some sort or another. Engine & transmission mounts are another possibility, but less likely.