The first place to look at for fuel supply and lean condition faults is the fuel filter. It's not hard for contaminants, dirt, and dust to find its way into your fuel system. Even rust can form in the tanks of some cars and that debris gets transferred through the system until eventually reaching the filter. There's nothing wrong with the system - the filter is doing exactly what it's supposed to do! But regular replacement of the fuel filter will ensure plenty of fuel is available for the engine to make power with. Is there a power gain from a fuel filter? No, but there is power restoration. The fuel filter is easily accessible on most cars and replacement is straight forward.
5X Entries Into Our F80 M3 Sweepstakes 5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!
A must for any tune-up and the source for a lot of engine issues, including: hard starting, hesitations, lean mixture faults, misfire faults, and stallings. The fuel filter is easy to change and it's recommended to replace it every 30-40,000 miles. This is an OEM Hengst filter.
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This is an OEM Mann replacement fuel filter. BMW recommends changing the fuel filter every 20,000 miles to keep your fuel injection system clean, a must for every tune-up.
