Thread: TD5 Fuel Leak

That's the Fuel Pressure Regulator (FPR). A common place for a fuel leak.

There are a number of threads here about repairing the leak, but boils down to some options

• Replace the whole FPR block ($$$)
• Replace gasket & o-rings (cheap, might work)
• Replace gasket, o-rings and the actual regulator, but use the existing block.

Third option is what I did and it was fine. If you dig around and find the right part number, you can sometimes pick up just the regulator on ebay, might say it is for a BMW or some such. I think I paid $50ish for one (plus a little bit for the gaskets & o-rings) instead of several hundred for the whole block.

Others here will ave their own opinion and experiences on the best way to tackle this.

TD5 fuel pressure regulator
O rings to do the job.
3 x 6mm by 1.5mm viton 75
1 x 106V7 .799" by 0.103" viton 75
1 x 117V7 .174" by >103" viton 75

Fuel pressure regulator
Bosch
P/N 0280160575
VW / Audi n/p 078133534C
Bosch n/p 0.280.160.575

hoffer:
7525013
MEAT & DORIA:
75013
Bosch:
0 280 160 516
0 280 160 517
0 280 160 575
Pierburg
72160501
72160551
VAG
078133534
078133534A
078133534C
This is the cheaper alternative to a new FPR its usually
just a oring seal or regulator that fails.
if you are handy with the spanners its worth a try.
Just double check with seller that it is a 4 bar regulator

If you blow seals soon after it could be a sign that your
injector washers are failing.

Search on AULRO or google for tips on fitting.

Pete

Excellent. Thanks, now the fun can start!