Engine Performance - Excessive Cranking Time

90audi05
Subject: 5 Cylinder Engines - Excessive Cranking Time Turbo Models 160 HP (MC Engines)
5000/100 130 HP (NF Engines)
Model(s): 80/90 130 HP (NG Engines)
Group: 25

90-04 Number:

Date: 09/30/90
(Supersedes Technical Bulletin 90-03, dated 7/31/90)


Condition:

Seeping fuel injector nozzles causing low residual pressure.


Production:

Introduction of "Viton" seat in injector assembly.

Turbo Models:
As of: November 1988
VIN: 44_KN038262


Service:

Replace all 5 injectors with new "Viton" injectors, P/N 035 133 551F.

Zone approval is required when installing five new injectors.