Soldato
If I remember it is Nearside = Left (passenger) and Offside = Right (drivers)
Car just failed MOT - Likely cause/fix/cost
- Thread starter stoofa
- Start date
If I remember it is Nearside = Left (passenger) and Offside = Right (drivers)
The offside is where you sit in the car as the driver.
Those readings aren't far off my guesstimate, so the "left side" is causing the imbalance and also the low efficiency.
Actually, are you sure thats the readings form the rear service brakes?
224KG is quite a lot for your car, especially with drum brakes.
Post up the paperwork if you can, not that it'll change what needs doing, but it'd be interesting to see.
According to the "lock out" and those figures, it should have failed on handbrake efficiency as well (it needs to be 16%)..
I can't quite understand how the fronts haven't locked out? I reckon he's not ticked the lock out box for whatever reason, and if he had, then it would have passed the service brake efficiency.
It's almost impossible for the fronts not to lock out, that and the OSR has a greater braking force than the front disc brakes!
I work about about ten minutes away from that garage, so if you want me to double check the brakes, I'll be happy to pop your car on the roller brake tester for you (it won't cost you anything, and they'll be zero obligation to have anything done)
Either way it's your NSR brake that has the problem.
Edit
I'm not sure that vehicle weight is correct either.
DM me your reg number and I'll run the figures through the MOT system.
I can't quite understand how the fronts haven't locked out? I reckon he's not ticked the lock out box for whatever reason, and if he had, then it would have passed the service brake efficiency.
It's almost impossible for the fronts not to lock out, that and the OSR has a greater braking force than the front disc brakes!
I work about about ten minutes away from that garage, so if you want me to double check the brakes, I'll be happy to pop your car on the roller brake tester for you (it won't cost you anything, and they'll be zero obligation to have anything done)
Either way it's your NSR brake that has the problem.
Edit
I'm not sure that vehicle weight is correct either.
DM me your reg number and I'll run the figures through the MOT system.
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Hi - Thank you for the kind offer.According to the "lock out" and those figures, it should have failed on handbrake efficiency as well (it needs to be 16%)..
I can't quite understand how the fronts haven't locked out? I reckon he's not ticked the lock out box for whatever reason, and if he had, then it would have passed the service brake efficiency.
It's almost impossible for the fronts not to lock out, that and the OSR has a greater braking force than the front disc brakes!
I work about about ten minutes away from that garage, so if you want me to double check the brakes, I'll be happy to pop your car on the roller brake tester for you (it won't cost you anything, and they'll be zero obligation to have anything done)
Either way it's your NSR brake that has the problem.
Edit
I'm not sure that vehicle weight is correct either.
DM me your reg number and I'll run the figures through the MOT system.
Typically, we actually live in a small town between Cambridge and Peterborough. My mother-in-law lives in Capel, so my wife combined a visit to see her with getting her car through (or not) the MOT.
Kind of wished I'd kept the job local, the garage didn't offer the other half any solutions or investigations - just MOT failed, come back and see us once it's fixed!
I'll DM you over the reg details in a second - just as a sanity check.
Current MOT runs until the 23rd, so should have time to get this resolved and a new certificate sorted.
If you were pushed to a diagnosis - NSR brake cylinder?
@stoofa thanks sending your car details.
I used the correct vehicle weight (that the system uses) and not the figure he's put into the MOT system along with the brake readings, and..
So it should have passed on brake efficiency, but still failed on imbalance.
Vehicle weight makes a huge difference to the readings.
Edit
When the car is retested, he’ll have to run the car again on the brake rollers, so it’d be interesting to see the figures he comes up with.
I used the correct vehicle weight (that the system uses) and not the figure he's put into the MOT system along with the brake readings, and..
So it should have passed on brake efficiency, but still failed on imbalance.
Vehicle weight makes a huge difference to the readings.
Edit
When the car is retested, he’ll have to run the car again on the brake rollers, so it’d be interesting to see the figures he comes up with.
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Thank you - that was really informative. I think I'd be angry now if after you'd run the correct figure it should have passed!@stoofa thanks sending your car details.
I used the correct vehicle weight (that the system uses) and not the figure he's put into the MOT system along with the brake readings, and..
So it should have passed on brake efficiency, but still failed on imbalance.
Vehicle weight makes a huge difference to the readings.
Edit
When the car is retested, he’ll have to run the car again the brake tester, so it’d be interesting to see the figures he comes up with.
But I can see it was a fail anyway.
Going to forge a relationship with my local garage and see if he can get me fitted in.