The 'double pump' brake pedal action is experienced by many SP owners Norm. If you search the forum you'll find several sensible suggestions that owners have found cure the problem - replacing perished brake hoses and tightening up the front wheel bearings being two examples. As I stated, none of these logical solutions had any effect on my problem.daimlernorm wrote: ↑Tue Apr 24, 2018 4:03 pm Interesting comment Nick about double pump on brake I have to do the exact same when braking on my SP
could you advise the Lucas Part No. for the Brake Lamp Switch.
I can offer no guarantee that replacing the switch on your car will have a similar result, but for what it's worth the original Lucas switch part Number is 3980003. There are modern replacements for the Lucas original available from several sources - this one for example. I actually ordered from this site but instead of the switch illustrated (in the green box) I actually received a Lucas original - like this one.
The Lucas original has a larger body than the modern replacements, although the thread is the same. Whether this has any relevance to the problem I have no idea.