Designed for gear-driven engines where injection distribution is controlled by the camshaft followers. This engine is driven by timing gears that are more commonly installed in engines without an upper camshaft or on diesel engines. Most gears used for drive camshafts and diesel injection pumps have helical gears, but some applications have spur gears or backlash reduction systems.

The service life of the timing gears depends on:

correct gear backlash
correct lubrication
Timing gears are not normally considered part of general maintenance and only need to be checked when they are dismantled or noisy.


Applications:

Volkswagen Touareg, Phaeton and Transporter 2.5 TDI PD (2005-2009)
Volkswagen 4.9D/TDI PD models (2003-2009)
Engine codes:

AYH / BKW / BLE / BWF / BAC / BLK / BPD / AXD / AX / BLJ / BNZ / BPC / BPE