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Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| for OE number | 11 61 7 503 520 |
| Weight [kg] | 0,165 kg |
OE/OEM numbers (1)
Search by this OE number to find compatible parts
- BMW—11 61 7 503 520
Where this part fits
Original-fit position for OE 11617503520. The red ring marks where this part installs on the vehicle.
About this product
Sourced from FEBI BILSTEIN, this oil separator crankcase ventilation (44158) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — for OE number: 11 61 7 503 520, Weight [kg]: 0, 165 kg — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit BMW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 001-10-17065, 004-028-052, 004-028-053, 01-25741-SX and 93 more. Matching these numbers confirms a like-for-like replacement with no loss of function. FEBI BILSTEIN is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About FEBI BILSTEIN
febi bilstein, founded in 1844 in Ennepetal, Germany, is one of the oldest and most comprehensive automotive parts suppliers in the independent aftermarket. febi bilstein offers over 40,000 parts spanning steering, suspension, engine, braking, cooling, and electrical systems. Certified to IATF 16949 and supplying OE-quality components, febi bilstein products undergo rigorous testing to match original equipment performance. With nearly 180 years of German engineering tradition, febi bilstein is the go-to brand for reliable, competitively priced replacement parts.
Suitable cars
Equivalent products (102)
Show all 102 OE numbers
Oil Separator Crankcase Ventilation FEBI BILSTEIN 44158 — compatible car models
| Car models | BMW: 1 (E87), 3 Compact (E46), 3 Convertible (E46), 3 Coupe (E46), 3 (E46), 3 Touring (E46), 3 Touring (E91), X3 (E83), Z4 Roadster (E85) |
|---|---|
| Engines | 120 i; 316 ti; 318 Ci; 316 i; 320 i; 2.0 i |
| Year of manufacture | 1997-2013 |
| Manufacturer article number (MPN) | 44158 |
| OE part numbers | 11 61 7 503 520 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 44158 febi Plus. for OE number: 11 61 7 503 520. Weight [kg]: 0,165 kg
- 1x Oil Separator Crankcase Ventilation
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Oil Separator Crankcase Ventilation compatible with my car?
This Oil Separator Crankcase Ventilation fits BMW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this FEBI BILSTEIN Oil Separator Crankcase Ventilation have?
This FEBI BILSTEIN Oil Separator Crankcase Ventilation has the following specifications: for OE number: 11 61 7 503 520; Weight [kg]: 0,165 kg. Check the full specifications table above for complete details.
What OE part numbers does this Oil Separator Crankcase Ventilation replace?
This Oil Separator Crankcase Ventilation replaces OE part numbers: 11 61 7 503 520. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Oil Separator Crankcase Ventilation cost?
This FEBI BILSTEIN Oil Separator Crankcase Ventilation is available for £36.99. Oil Separator Crankcase Ventilation prices vary depending on brand, specifications, and vehicle compatibility. FEBI BILSTEIN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Oil Separator Crankcase Ventilation?
Regular inspection of your Oil Separator Crankcase Ventilation is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Oil Separator Crankcase Ventilation?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Oil Separator Crankcase Ventilation fitted by a professional mechanic.
Can I use this part as a replacement for OE 11 61 7 503 520?
Yes, this FEBI BILSTEIN Oil Separator Crankcase Ventilation is a direct replacement for OE part number 11 61 7 503 520. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the FEBI BILSTEIN 44158 the same as the FEBI BILSTEIN 100114?
No, while both are Oil Separator Crankcase Ventilation parts, they are different products. The FEBI BILSTEIN 44158 has for OE number: 11 61 7 503 520, Weight [kg]: 0,165 kg. The FEBI BILSTEIN 100114 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
