xsara failed mot and retest

mcjordi

after the retest today it failed AGAIN

1. offside rear parking brake recording no or little effort ( ive had on both sides wheel cylinders and new cables , the shoes looked new according to my mechanic)
2. service brake below requirments (only showing 45% effort on the brake test sheet)

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this is a new fail
3. parking brake below requirments (14%) has gone from 12% after new cable

any help???

i have till 18th november remaining on my current mot

Rolandtheroadie

These are things measured by a machine. Your mechanic must not have adjusted the cable correctly or bled the brakes right (air still in the system).
Thats why you also have a new fail.

mcjordi

well he is gonna take a look at them again tomorrow

well heres hoping its just a re adjustment

Premier_2

Hmmm...parking brake is cable operated. Service brake is hydraulically operated. I presume the service brake failed on the rear? (not the front)

If so, it sounds likely the rear brakes shoes may be contaminated. maybe just R/O/S.


Whatever the cause, it sounds worrying that a "mechanic" has worked on the brakes but needed to do a MOT brake test to discover they were still faulty.

vaio

If you’ve had cylinders it’s presumably because they were leaking and so fluid will have contaminated the shoes. This is impossible to clean off so the shoes need replacing

mcjordi

thought so cheers....

hartcjhart

vaio wrote: »

If you’ve had cylinders it’s presumably because they were leaking and so fluid will have contaminated the shoes. This is impossible to clean off so the shoes need replacing

not always so,buy some 'clutch&brake cleaner' and spray on,might need more than one go

Premier_2

hartcjhart wrote: »

not always so,buy some 'clutch&brake cleaner' and spray on,might need more than one go

In the old days, people used to burn off any oil contamination.

But with (a) more reliable brakes expected (b) the cost of labour and (c) new brake shoes now only costing £15-£30 a set, best to just fit new.

Pew_Pew_Pew_Lasers!

hartcjhart wrote: »

not always so,buy some 'clutch&brake cleaner' and spray on,might need more than one go

You can't remove oil from contaminated pads.

vaio

You might be able to remove brake fluid if you tipped some on to the shoes and removed it straight away.

If they’ve been soaking in brake fluid and exposed to heat etc you’ve got no chance, fit new ones or rather get your “mechanic” to fit new ones as he should have done first time round.

cyclonebri1

You need a new mechanic, no excuses:mad:;)