Hi All
we haven't used our 964 C4 much this year unfortunately so we now have a big trip planned for it in a fortnight's time. 2 weeks ago, we did 200 miles in a day as a test and it ran perfectly
However on picking the car up from its oil and filter change yesterday, the dreaded "!" light was up and the brake booster is definitely not working... scary!
I changed the relay R51 about 4-5 years ago when we had a similar problem
This morning, i checked that fuse #15 is ok (40A!) which it is, I then jumped terminals 30 and 87 and the booster pump runs... and runs
my question is: if 30 & 87 are jumped, does this automatically mean that it is the relay? i.e. the pressure switch on the end of the pump is ok?
hope you can help please and look forward to hearing
many thanks
:thumb:
we haven't used our 964 C4 much this year unfortunately so we now have a big trip planned for it in a fortnight's time. 2 weeks ago, we did 200 miles in a day as a test and it ran perfectly
However on picking the car up from its oil and filter change yesterday, the dreaded "!" light was up and the brake booster is definitely not working... scary!
I changed the relay R51 about 4-5 years ago when we had a similar problem
This morning, i checked that fuse #15 is ok (40A!) which it is, I then jumped terminals 30 and 87 and the booster pump runs... and runs
my question is: if 30 & 87 are jumped, does this automatically mean that it is the relay? i.e. the pressure switch on the end of the pump is ok?
hope you can help please and look forward to hearing
many thanks
:thumb: