Car to mechanic before or after NCT

The only proof that I look for is the Pass Cert .
Even before the off license is open ;)
 
Car has just failed NCT again for the same issue with rear brake imbalance. Bit annoyed as I had paid my mechanic €350 to "fix" the issues after the first failed NCT. Is the problem perhaps that NCT centres are using testing conditions that a mechanic is unable to replicate?
 
PoundMan said:
Car has just failed NCT again for the same issue with rear brake imbalance. Bit annoyed as I had paid my mechanic €350 to "fix" the issues after the first failed NCT. Is the problem perhaps that NCT centres are using testing conditions that a mechanic is unable to replicate?
Click to expand...
Take it to a different centre for a retest. I posted before about an imbalance fail for front shocks. The readout numbers given by the Nct centre had no meaning and were clearly wrong/impossible to exist but they would not listen. Passed perfectly on retest with no adjustments or work done.
 
PoundMan said:
are using testing conditions that a mechanic is unable to replicate?
Click to expand...
You'd need one of the better equipped garages with the right equipment to replicate their test, effectively a rolling road which measures the braking force applied to each wheel.
 
Did you get a full readout of the front brakes also ?
If these are similar to your first NCT readout the brake test equipment is probably calibrated okay.

Ask the mechanic to check the brakes again.
Did he bleed both sides ?
He probably doesn't have the test equipment, but he should be able to get the brakes tested somewhere for you.
 
PoundMan said:
Car has just failed NCT again for the same issue with rear brake imbalance
Click to expand...

I failed with this a few times.
Drum brakes at the back for me.
In my case there is an adjuster in the drums that is meant to automatically adjust the brake shoes to nearly touch the drum. It's not working on one side and you have to screw it out manually.
I removed the drum to do it but you don't have to. There is a hole or slot to get a screw driver in to rotate the screw.
 
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