Hi I am Ram and i own a Skoda octavi 2007 , Ambient 1.4 model, it failed in NCT the reason being the rear axle break imbalance at 35% instead of less than 30%. I serviced my car and changed the caliper, break pads and break disc. Still it failed. It was told to me that i havent driven my car much after changing the caliper and break pads? is that correct. will that cause imbalance. 

Can you help me on it and whats the solution for this problem?

So did you take it for a NCT straight after changing your caliper, disk and pads or were they done a while back?

 

 

Willy i drove it for around 40 km and then i took it to NCT.

I had my Octy fail a MOT for a rear brake imbalance. One of the rear wheel bearings had gone 'lazy' which was causing the abs sensor to read differently compared to the others on the car. The indy I took it to replaced the bearing and the car passed the MOT.

I can't see it being a bedding issue as brake balance is across the axle, did you bleed the brakes after the caliper change?

Did you change both the calipers?

No only one caliper has been changed. Not both. The issue is in rear axle. Front axle is fine.

 

1 hour ago, wiilydog said:

I can't see it being a bedding issue as brake balance is across the axle, did you bleed the brakes after the caliper change?

Willy, i am not sure on the above thing. The Atlas service station guy told me to drive atleast 200 km in the city with frequent braking, which will resolve the problem. Is it a right solution?

Guess it do no harm to give it a try.

 

I've had front brake imbalance MOT failure and was sorted with new discs, pads and one caliper and passed without being fully bedded in.

 

Did the tester say which side was causing the issue?