Tip & How-To about 1999 Volkswagen Passat

Gearbox Problem in Passat 1999

I have Passat 1999. the gearbox is automatic.There is aknock just when the Transmisson change from two to three . I changed the solenoids before one month nearly and reprogrammed the transmission and it was ok. before few days the knock appeared.I'm wondering why this problem when the transmisson change from two to three.

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hi, i have automatic passat 1999 model and recently water happens to get into the gear box and it control board, i experiences a boom sound anytime the gear is changed, the oil has been changed by the problem still exist. pls give me an advice ?


If no external leak and the transmission fluid colour looks white, the problem belongs to the automatic gearbox oil cooler. The oil cooler has broke mixing the gearbox oil and coolant causing this milkshake. It's a small radiator core type oil / water heat exchanger. It is cracked inside and transmission oil is mixed with engine coolant. Because the transmission oil pressure is greater than engine coolant pressure, the transmission fluid level drops. See also the coolant colour inside recovery coolant reservoir inder bonnet! It could be like this:

tdisline_495.jpg
The automatic gearbox oil cooler type oil / water heat exchanger (oil cooler):

tdisline_496.jpg
In the picture above the transmission oil pan was removed for oil filter replacement.

May 05, 2011 | 1999 Volkswagen Passat

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I just purchased a 1999 VW Passat and when I start to drive the car acts like a manual and it is an automatic. Now it has on the gears D,4,3 & 2 what is that about?


you have effectively got two gearboxes in the car.1is a normal auto (D) ON THE FLOOR then you have + and - for the "manual" take your pick....now here is the clever part,if you put the car in auto "D"and dont touch the gas the car will accelerate to about 35 on the flat.and will change as per a normal auto,if then when you stop you put 1/3rd gas pedal and hold that position it will go right upto about 65,stop then puit your foot right to the floor (kickdown)and the car will fly...stop...you have just reset the gearbox..try and keep to 1/3rd gas for about 25miles and you will see a big difference in gear changes/revs (smoother)but boring....

Sep 21, 2010 | 1999 Volkswagen Passat

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