Case Study
Toyota Avensis Corroded Brake Pipes
Our customer's Toyota Avensis failed its MOT with a major defect for corroded front and rear brake pipes. The MOT also recorded several advisories, including a perished and cracked auxiliary drive belt and brake discs that were worn, pitted or scored, but not seriously weakened. Our technicians carried out the repairs needed to get the Avensis through its retest.
Fault Codes
No fault codes – this was an MOT failure for the following:
Major defect – front and rear brake pipes corroded
Advisory – auxiliary drive belt perished and cracked
Advisory – brake discs worn, pitted or scored
Common Symptoms
- MOT failure for corroded brake pipes
- Rust visible on the brake pipes under the car
- Cracked auxiliary drive belt
- Worn or pitted brake discs
Toyota Avensis MOT Inspection
During the MOT, our tester found that both the front and rear brake pipes had corroded to the point of being a major defect. Brake pipes carry the hydraulic pressure that operates your brakes, so corrosion can cause them to weaken and eventually leak or burst, which is why this is treated as a serious safety issue. The tester also noted the cracked auxiliary drive belt and the condition of the brake discs as advisories, meaning they didn't fail the test but should be monitored.
Vehicles Affected
Toyota Avensis
- Toyota Avensis 2003
- Toyota Avensis 2004
- Toyota Avensis 2005
- Toyota Avensis 2006
- Toyota Avensis 2007
- Toyota Avensis 2008
- Toyota Avensis 2009
Toyota Corolla
- Toyota Corolla 2002
- Toyota Corolla 2003
- Toyota Corolla 2004
- Toyota Corolla 2005
- Toyota Corolla 2006
- Toyota Corolla 2007
Toyota Auris
- Toyota Auris 2007
- Toyota Auris 2008
- Toyota Auris 2009
- Toyota Auris 2010
- Toyota Auris 2011
- Toyota Auris 2012
Front & Rear Brake Pipe Replacement
We started by replacing the nearside front indicator repeater bulb and the offside front sidelight bulb. We then replaced both the front and rear brake pipes, along with the rear brake hoses. Once the new pipes and hoses were fitted, we bled the brake system and tested the brakes, which confirmed they were working effectively. Although the brake discs were pitted, they were still safe enough to pass the MOT.
Resolution
With new front and rear brake pipes and rear brake hoses fitted, the Toyota Avensis passed its MOT retest. Our customer was reunited with their car, safe and roadworthy for another year.
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