yesterday the big biennal event about keeping cars on the road took place for the Jag: it was checked for roadworthiness - MoT in some regions of this planet, MFK in others and TÜV in this neck of the woods.
The examiner was pretty enthousiastic about the car, the undercarriage and the suspension. The brake test bench yielded 320 vs. 310 daN front and 260 vs. 240 daN rear, but for the parking brake a devastating 60 vs. 260 daN. Two years ago the car passed with 100 vs. 190 daN at the parking brake. While a parking brake is not required to work as evenly as the operating brakes, the present difference is excessive.
Now my question - without even having looked at the system: Given that there obviously is a longer trend to disbalanced operation, is there any major suspect? Given the time it took and the fact that the rh brake is even stronger than two years ago I’d tend to assume that the lever mechanism distributing the pulling power from the main wire to the two brakes is seized. Of course, there might also be oil or grease in the brake itself - but then it should contaminate the rotor and, consequently, affect the functioning of the rear operating brake, shouldn’t it?
Any ideas welcome - I have to fix this thing after my vacation!
Thank you all
75 XJ6L 4.2 auto (UK spec)