The high pressure fuel pump in the 2.0TFSi engine can be affected by excessive wear of the cam lobe and the follower that drive the pump. The factory solution is to increase the hardening of the cam lobe and as of 2006 all 2.0TFSI’s have harder cam lobes.
This issue is not limited to remapped/modified engines and can also be found on completely standard set ups. This affects the OE fuel pump and all versions of aftermarket up-rated fuel pumps. This issue is not a direct result of remapping. However, extended periods at very high RPM – such as aggressive track day driving – can cause rapid deterioration.
The recommendation is that an inspection of the cam follower is done at each service interval/10,000 miles (on a standard engine). For vehicles that have been re-mapped and/or have an uprated fuel pump then an inspection every 5,000 miles is suggested whilst cars that are used for track days should be inspected after each event.
This issue is more prevalent on some aftermarket high pressure fuel pump kits than others, however all OE and aftermarket TFSi fuel pumps are affected by this issue.
This item is a genuine OE replacement part (06D 109 309 C) direct from the manufacturers and always held in stock here at AKS Tuning.