Table 1 shows one common gasoline fuel system related problems of the 2007 Audi A4.
| Problem Category | Number of Problems |
|---|---|
| Fuel Pump problems |
Highly common failure with the high pressure fuel pump(hpfp)and related parts in 2005. 5-2008 Audi A4 2. 0t fsi engines. 'cam follower' that is a buffer between intake camshaft lobe and hpfp located on the intake manifold. When part fails, it wears hole in buffer "cam follower" which results in excessive wear to intake camshaft and fuel pump piston and spring. No unusual circumstances led up to the failure. Normal highway/city mix driving. Occasional fuel cutoff is the only hint that the part is failing, and only happens when driving is more spirited. . Read more...
Upon reading of a high number of failures and excessive wear on those yet to fail with under 50k miles on them, I check the "cam follower" inside the high pressure fuel pump of my 2007 Audi A4. Sure enough, it exhibits signs of excessive wear and well on it's way to failure - and expensive repairs and replacement parts. The dealership refuses to replace the cam follower, a $50 dollar part until it fails and causes damage to the engine's cam and high pressure fuel pump. Audi has issued a technical service bulletin on the problem. I only have 6 months of warranty to go. Upon failure, repairs are approx $1,100. 00.
Fuel cut-off/surging when accelerating. Engine is not throwing any engine codes; however, a loss of power is present when accelerating. This occurs every time I try to accelerate. This is a known issue with the cam follower and high pressure fuel pump on all 2. 0t fsi motors from Audi and vw. My cam follower has a hole in it (have the part) and the hpfp is worn down because it has made contact with the cam lobe, which has been scarred. Replacement requires a new cam, hpfp and cam follower. The design however will require constant inspection of the cam follower to avoid major engine failure. All 2. 0 t fsi engines will experience this problem. Audi has a TSB #2013147/4 dated June 18, 2007 that warns of this problem upon cel light being shown. My car never showed the cel light; however, had the other symptoms described and upon further inspection had a hole in the cam follower, with severe damage to the cam and hpfp.