Placey
Senior Member
Folks - the '93 R129 I have has the following problem:
The headlamp adjuster works - ie it will raise and lower the light beam, but it is not constant and under acceleration it dips and under lift off, the lights raise up. It seems the stability of the vaccum pressure is all to pot. When the engine is shut down, the lights dip right down. All other vacuum related things seems to work fine such as central locking.
Is there a non-return valve in the vacuum lines that may be faulty? If so, can anyone point me to a diagram of where it is!
Any ideas? Pretty sure it is not the switch. Oddly enough, I had the same issue with the last 126 I had and never solved it.
Many thanks
The headlamp adjuster works - ie it will raise and lower the light beam, but it is not constant and under acceleration it dips and under lift off, the lights raise up. It seems the stability of the vaccum pressure is all to pot. When the engine is shut down, the lights dip right down. All other vacuum related things seems to work fine such as central locking.
Is there a non-return valve in the vacuum lines that may be faulty? If so, can anyone point me to a diagram of where it is!
Any ideas? Pretty sure it is not the switch. Oddly enough, I had the same issue with the last 126 I had and never solved it.
Many thanks