A problem with the torque converter can cause the Check Engine Light to illuminate.
Resources for the Repair and Maintenance of your Volkswagen Passat TDI
Volkswagen Passat TDI Models:
Volkswagen Passat TDI Problems
Because of issues with the glow plugs and/or the glow plug wiring harness from the control relay, the Check Engine Light may illuminate. Our technicians tell us there is a service bulletin, not a recall from Volkswagen regarding replacement of the glow plugs on 2004-2005 model years only.
Our technicians recommend having the constant velocity (CV) boots and CV joints inspected at each service. Servicing torn CV boots early can prevent the need to replace the CV half shaft or CV joint.
The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.
Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.
Volkswagen Passat TDI Recalls (Recent)
RepairPal Expert Overview:
Vehicles equipped with a diesel engine may have been assembled with a fuel filer that may not seal correctly. This could result in a fuel leak, increasing the risk of a fire. Dealers will replace the diesel fuel filter to correct this concern. The Volkswagen recall number is 20R7/W3.
Volkswagen Passat TDI Questions and Answers
Cost estimate for replacement of rear brakes, calipers and roters
how do you check the transmission fluid on a 2004 vw passat
driving car 60 mph and it redlined. Tried to shut off by turning off key and it kept running. Friend (mechanic), says he found the "turbo" behind motor and in front of firewall seized u...
100000 mi. on my vw. do you recomend timing belt change?
Volkswagen Passat TDI Reviews
My Passat now requires transmission work for the 3rd time. By far the most expensive car for repair bills I have ever had (30 years of driving).
Dealership won't cover anything under their "bumper to bumper" used car warranty.
I really love this car. I have had it for a little over 6yrs. Great mileage (42mpg) when cruise control is set at 72 mph. Great stereo. Sadly, I will likely let this car go. I am facing having to replace the torque converter for $2,700 and maybe the transmission for $4,900. I just cannot see dropping nearly 8K for repairs. That's ridiculous.
The TDI is a great engine for fuel mileage. A very comfortable mid-sized car that can get over 40 mpg on the highway. The power is outstanding and addictive.
The major downside is that VW of America has a poor rep for customer service, and refuses to acknowledge a design flaw in the 04 & 05 diesel (TDI) engines. The oil pump is chain driven and has caused major engine damage to more than a few owners. An out of pocket fix can cost you around $3k, if you catch it b4 it totals you engine. Fred in OKC
first diesel i owned. i love it. excellent mileage. good get up and go. 94,000k and still have original brakes. thought timing belt replacement and water pump and few accessories were a bit out of line. $1200. otherwise an excellent machine. i will buy another .