Re Oil Leak Near Turbo - 1.9TDI PD – 01-12-2008, 03:44 PM. She's doing great, and even running with a remap up to 191BHP. The only issue is some front suspension rattle, which I'll get sorted in the new year. I would like to get her to 300,000 miles (approx three years away). 2003 A6 1.9TDI PD Avant SE 359,000 miles.
Vacuumsystem leaks. Timing Belt & Tensioner failure. Coolant sensor failure. N75 valve issues. 1. VW 1.8t Oil Sludge Build-Up. Unfortunately, this is a very common problem with 1.8’s due to the low oil capacity Volkswagen provided these engines.
Askedon 3 October 2016 by sps. Answered by Honest John. The turbo will have failed because the engine was regularly switched off when the turbo was too hot and the turbo bearing oil feed and oil return pipes became clogged with carbon. Fairly normal for a VAG TDI to need either a new EGR or the EGR cleaning out (they are fragile and can break
Minehad a good little leak to it. I pulled it, thoroughly brake cleaned the valve cover, and cleaned the mating surface on the head with a rag soaked in brake clean. After all was clean and dry, I used ford grey silicone (was designed for the 7.3 powerstroke. They dont have an oil pan gasket, the grey silicone is all.
Connecta hand vacuum pump to the EGR valve in place of the vacuum hose and apply 15 in-Hg of vacuum to the valve (if you don't have access to a vacuum pump you may borrow-rent one from a local auto parts store). As you apply vacuum to the valve, check for diaphragm movement. Also, pay attention to engine idle.
Oilin the intake pipe is a common problem with the TDI's. Most people disassemble the intake plumbing and remove the intercooler during a timing belt change in order to clean things up. This is common around the EGR valve. Oily turbo on a ALH 1.9 TDI Golf MK4 - Co (thebestgolfzareatwarsop) The turbo will leak more oil when
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1.9 tdi egr valve leaking oil
