Baz Meredith has highlighted the risks of improper timing belt installation in a new video featuring a 2014 Audi A5 2.0D. During what should have been a routine belt and water pump replacement, Meredith discovered the engine’s timing was incorrectly set, despite the vehicle owner having no record of previous intervention.
Baz begins by placing the Audi into ‘service mode,’ a process involving the removal of the front bumper and tilting the radiator pack forward.
While some technicians attempt the job without this step, he argues the increased access to the crankshaft pulley and timing covers is essential for ensuring accuracy and reducing physical strain during the procedure.
Upon stripping the covers, Baz identified that the engine timing was approximately one tooth out.
Although the vehicle was running well and presented no fault codes, the adjusters for the camshaft and high-pressure fuel pump were noticeably misaligned.
This discovery underscores a common issue in the independent trade where belts are replaced without the stringent use of proper locking tools.
The procedure involved using a comprehensive Schaeffler timing belt kit, including a new water pump and replacement studs.
Baz emphasises the importance of meticulously cleaning the mounting surfaces to prevent leaks and ensure the new components sit correctly.
He also details the tensioning process, noting that the floating pulleys allow for the timing to be set “bang on” once the crankshaft is locked at Top Dead Centre (TDC).
To conclude the repair, a vacuum coolant filler was used to replenish the system.
Baz demonstrates how this tool pulls a vacuum to remove air from the circuit, preventing trapped pockets which is vital on modern engines equipped with multiple auxiliary pumps.
The job was finished with a final check of the timing marks after two full engine rotations, confirming the alignment was perfect.
