Tuesday, January 10, 2012

Replacing a VW Phaeton transmission, the saga

A 2004 V8 Phaeton owner on VWVortex had to have his transmission replaced and posted these photos.

The guy bought the car in April 2010 with 80,000 miles on it.  By 94,000 miles, the car started acting funny while shifting from 1st to 2nd.  For a brief moment, the engine would rev up a couple hundred RPM, as if the transmission was in neutral, before engaging into 2nd.  The tech diagnosed it as a "flare shift" and concluded that it was only going to get worse.

Fortunately, the guy bought a service contract/extended warranty.  The warranty company offered two choices: the company would pay for a used 70,000 mile transmission or the owner would have to pay an extra $2,000 for a rebuilt transmission (that's the cost differential between a used unit and a rebuilt unit).  He opted for the rebuilt transmission.  His research revealed that a rebuilt transmission cost around $4,500. 

Here is the mechanic disconnecting all the fluid lines.

Disassembly instructions.

The engine and transmission will be lowered onto this table.  Note that it is in two pieces, for when the engine and transmission are separated from each other.

They forgot to unhook an oxygen sensor wire.
 

Old transmission.

New transmission.



Do we need these extra parts?

These pictures were taken in June 2011.  Within a couple of months, the new transmission was experiencing the same problem, only between 2nd and 3rd gear.  The shop updated some software, and it ended up shifting even worse.  The owner then waited two weeks for a valve body from Germany.  After installing the valve body, the flare shift was still there.

The saga continues.

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