[W126 Coupe] (no subject)

[Robert Karl Stonjek]

Hi everyone,

               Does anyone know the most likely area of leakage from the vacuum lines that locks the seat backs upright on my 380SEC ? Could it be inside the vehicle? Or a valve ..not a leak?

Thanks.......Barry (Australia)



Barry,
with the vehicle not running, move the seat locks forward and back manually.  This will push air back through the vacuum lines - you will hear a rush of air through any disconnected or leaky hoses.

A common problem is the deterioration of the rubber in the actuators (that push the seat locks into place).  These must be replaced - they don't repair well as if they are leaking through rubber deterioration then it is likely that any patching will not last long before another leak springs.

On my car, some clever? previous owner had disconnected the line to the seat locks and stuck a match in the end to seal it.  I traced the original problem to below the driver's seat, removed and repaired the problem (pipe had pulled loose - I pushed it on the first time but it came off again later - the second time I used silicone (Allclear) to seal and 'glue' it) and reconnected the hose - still working fine 12 months on :)

Robert
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