It's common sense that proper maintenance will prolong the life of every system in your vehicle. Refer to the vehicle manufacturer's maintenance schedule and inspect or replace these components accordingly. Doing so will optimize fuel mileage, performance, and may extend the life of individual components.
Air Filter
It's important to make sure that your air cleaner is clean at all times. The cleaner filters outside air before it enters your engine. Dirty air filters will constrict the air flow, and reduce your overall horsepower and gas mileage. You should replace
13-72-7-834-714-M67
Air Filter Right, M5 Brand: Mahle Filter [More Info]
$27.25
13-72-7-834-715-M67
Air Filter Left, M5 Brand: Mahle Filter [More Info]
$28.25
Deflection Pulley
Drive Belt Idler Pulley
11-28-7-841-228-M40
Deflection Pulley for Water Pump/Alternator Belt (OffSet Mounting), M5 Brand: INA [More Info]
$25.25
Oil Filter Canister 0-Ring
11-42-1-741-000-M213
Oil Filter O-Ring 91 X 4 mm, M5 Brand: D P H [More Info]