Skip the auto shop - Our mechanics make house calls

Q: Rear Brake Imbalance

asked by on

my car failed on MOT test cause (rear axle brake imbalance ) I already replaced rear brake pads and disks but same result came again , what I need to replace to solve that issues

My car has 123000 miles.
My car has an automatic transmission.

A: The brakes front and rear would need to be ...

The brakes front and rear would need to be inspected for any excessive wear on the pads and rotors. The rear calipers may be sticking due to the caliper slides may make only one side of the rotor work. Have the rear pads and rotors checked to see if the brakes engage when the brakes are applied. You most likely have binding rear calipers and need to replace both rear calipers. These type calipers have a built in parking brake mechanism that may be seized causing the caliper to not keep tension on the pads and the pads will travel too far before engaging the rotors. A complete brake safety inspection should be done to see if one or both calipers and rotors with new pads should be replaced.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car not accelerating

Hello, in your particular vehicle the RPMs and gas pedal are controlled electronically. The accelerator pedal position switch sends a signal to the ECU which sends a signal to the throttle position sensor. The throttle position sensor controls the opening...

Q: Where is the purge valve located on a Mazda 626

Hey there. On a 2000 Mazda 626 2.0L it is in the passenger side of engine compartment on the firewall. If it is a 2.5L, then it is under and near the brake master cylinder.

Q: In this case - which parts should be changed first (CV axles ,wheel bearing ,calipers ) to solve the problem? 2009 Kia Optima

Hi - we need a bit more information to know how to prioritize these possible repairs. A roaring noise while driving would evidence wheel bearing issues. Pulling to one side or the other would indicate a brake caliper issue. Squealing,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...