ALH pump leak hose damage

Jet 02

Well-known member
Joined
Mar 13, 2007
Location
Californa
TDI
2002 Jetta, Vanagon AHU project
When my pump leaked, the diesel damaged the small coolant hose below it. I purchased a new hose but originally it is tied to and other hose and they are routed across the front of the engine and up the right hand side of the engine compartment. Replacing it looked like one of those 30 minute jobs that takes 3 hours, if routed through the original hose retainers.
The easy fix was to replace just 3 inches of 3/4" hose at the engine and use a PEX (home plumbing fitting) adapter from 3/4" to 1/2" and a pair of hose clamps. . The original hose is 3/4" at the end connecting to the motor but is 1/2" inner diameter as it travels around the engine compartment. I used the plastic PEX fitting. A big box store has them on close out, a package of 2 for under $2.. Done, 15 minutes start to finish.
Regards
Jet 02
 

UhOh

Top Post Dawg
Joined
Dec 24, 2014
Location
PNW
TDI
2000 & 2003 Golf GLS (2005 Mercedes E320 CDI)
I suspect that PEX should be OK, but in general it's always a good idea to check on compatibility of the hose material and the substances that it is going to contain.
 
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