smeegarn
New Member
- Posts
- 4
- Location
- Brisbane Australia
changed haldex unit after fault only to have bearing noise once changed thinking could be haldex unit as it was off a wreck but no trouble messages just bearing whining
noisy haldex
- Thread starter smeegarn
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smeegarn
New Member
- Posts
- 4
- Location
- Brisbane Australia
only changed haldex unit diff seems to be ok
It's unusual for the Haldex to suffer bearing failure, but if the Haldex was out of a badly damaged vehicle, then it's possible.
Did you spin the Haldex input shaft before installing it?
smeegarn
New Member
- Posts
- 4
- Location
- Brisbane Australia
luckily have olld haldex unit which only needs pump replace which is a later gen 3 unit so i'll try that and see how we go
Gen 3 Haldex was used up to the end of 8H chassis number range. The Gen 4 was introduced from 9H chassis number range.
You can't use parts between gen 3 and gen 4, or swap Gen 4 for Gen3, or Gen 3 for Gen 4.
They're totally different units , using different software specification, so the terrain response module doesn't communicate with the wrong Haldex.
