BMW 8 Series E31 (1st gen) service parts guide
The BMW 8 Series E31 (1st gen) (1990–1999, 840i 4.0 V8 / 840Ci 4.4 V8 / 850i 5.0 V12 / 850Ci 5.4 V12 / 850CSi 5.6 V12) shares the same routine service items as most cars on the road. This guide runs through the parts owners replace most often and lets you compare current UK prices for each in a couple of clicks.
Always confirm fitment against your own VIN/registration and your owner's handbook — engine variant, build date and options can change the exact part. Use the comparison tool to check current stock and price.
Oil Filter
Change the oil filter at every oil service. MANN-FILTER, Bosch, MAHLE and Fram are common OE-quality fitments — match the filter to your exact engine.
Air Filter
The engine air filter keeps grit out of the intake; replace it at alternate services. Panel filters from MANN-FILTER, Bosch and washable K&N options are widely available.
Cabin / Pollen Filter
The cabin (pollen) filter cleans the air entering the heater and air-con. A yearly swap keeps airflow strong — particulate and activated-carbon versions are sold.
Brake Pads – Front
Front brakes do most of the stopping and wear faster than the rear. Replace pads as an axle set; Brembo, Textar, EBC and Mintex are popular choices.
Brake Discs – Front
Replace front discs in pairs, ideally with fresh pads. Brembo, Pagid and ATE are common OE-quality options — check the diameter for your car.
Brake Pads – Rear
Rear pads last longer than the fronts but still wear. Fit them as an axle set and inspect the rear discs at the same time.
Brake Discs – Rear
Replace rear discs in pairs with new pads. Match the disc type (solid or vented) and diameter to your vehicle.
Brake Fluid
Spark Plugs
Petrol engines need the correct heat-range plugs at the specified interval. NGK and Denso cover most fitments — always replace the full set.
Wiper Blades
Flat-blade sets such as Bosch Aerotwin or Valeo Silencio are quick seasonal swaps — check the blade lengths and fitting type for your car.
Battery
A 12V battery typically lasts 4–6 years. Match the capacity (Ah), terminal layout and stop-start type (standard, EFB or AGM) to your vehicle.
Engine Oil
Use the grade and specification listed in your handbook (modern engines usually take a low-viscosity fully-synthetic oil). Buy enough for the engine's capacity plus a little for top-ups.
Clutch Kit
Manual cars need a new clutch when it slips or judders. Kits from LuK, Sachs and Valeo bundle the cover, friction plate and release bearing.
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Compare BMW 8 Series E31 (1st gen) parts