Mercedes 190E Automatic transmission

External Since: May 01, 2007 Posts: 3

Help gearbox is using loads of transmission fluid had vacum chamber valve
changed. fluid not leaking out but would appear to be getting in engine
and into pistons as smokes like hell,I am really stumbed as would appear
garage as well am throwing car back at them as put new chamber vacum valve
on has returned back no better so would appriciate some guidance so can
point garage in the write direction befor have to take out a 2nd morgage
to pay for there think its this oh no must be this approach.......

Many Thanks Martin

External Since: Jan 07, 2004 Posts: 981

Mmm... are you telling me they changed the vacuum modulator on the
transmission and it still sucked ATF through the vacuum line? No freaking
way. This is the classic vacuum modulator problem and once changed with a
new one, it should not lose any more fluid to vacuum system.