Engine Oil Cooler - Leaks into the Cooling System
83VW03Applies To RABBIT, JETTA, QUANTUM
Turbo Diesel - 1983-84
RABBIT CONVERTIBLE, SCIROCCO, JETTA GLI - 1984 SCIROCCO GT - 1983 VANAGON DIESEL - 1982-83
Group
17
Subject:
Oil Cooler
Part Identifier 17 40
Key Points
Oil cooler leaks
C
Number
83-03
December 6, 1983
If oil contamination is found in the cooling system, one possible source of leakage is the oil cooler.
- remove oil cooler from vehicle
- plug one hose fitting and pressurize remaining fitting with air
- submerge cooler in water and check for air bubbles which indicate a leak in cooler
- if leaking is noticed, replace cooler
Note
Always use a new seal coated with clean engine oil when reinstalling oil cooler.
- clean cooling system thoroughly (use Prestone Super Flush AS - 107 or equivalent)
CAUTION
Oil contamination of coolant may have deteriorated coolant hoses. Inspect and replace hoses depending on condition and/or length of time oil has been in cooling system.