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Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| Category | Air cleaner |
| Height [mm] | 158 mm |
| Weight [kg] | 0,357 kg |
| Inner Diameter [mm] | 78 mm |
| Outer Diameter [mm] | 156 mm |
| Inner Diameter 1 [mm] | 31 mm |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- AUDI—4K0 133 844 A
- AUDI—4K0 133 844 E
- AUDI (FAW)—4KD 133 844 A
Where this part fits
Original-fit position for OE 4K0133844A. The red ring marks where this part installs on the vehicle.
About this product
The FEBI BILSTEIN Air cleaner (181252) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Height [mm]: 158 mm, Weight [kg]: 0, 357 kg, Inner Diameter [mm]: 78 mm, Outer Diameter [mm]: 156 mm, Filter type: Stainless Steel. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit AUDI 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: .005.6115, 11331778601, 121-50061, 154072502829 and 41 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 (45)
Show all 45 OE numbers
Air cleaner FEBI BILSTEIN 181252 — compatible car models
| Car models | AUDI: A6 Allroad C8 (4AH), A6 C8 (4A2), A6 C8 Avant (4A5), A7 Sportback (4KA) |
|---|---|
| Engines | 40 TDI Mild Hybrid quattro; 30 TDI Mild Hybrid; 35 TDI Mild Hybrid |
| Year of manufacture | 2017-2018 |
| Manufacturer article number (MPN) | 181252 |
| OE part numbers | 4K0 133 844 A, 4K0 133 844 E, 4KD 133 844 A |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 181252 Air cleaner. Filter type: 9. Height [mm]: 158 mm. Inner Diameter 1 [mm]: 31 mm. Inner Diameter [mm]: 78 mm. Outer Diameter [mm]: 156 mm. Supplementary Article/Info 2: 162. Weight [kg]: 0,357 kg
- 1x Air cleaner
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 Air cleaner compatible with my car?
This Air cleaner fits AUDI 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 Air cleaner have?
This FEBI BILSTEIN Air cleaner has the following specifications: Height [mm]: 158 mm; Weight [kg]: 0,357 kg; Inner Diameter [mm]: 78 mm; Outer Diameter [mm]: 156 mm; Filter type: 9; Supplementary Article/Info 2: 162. Check the full specifications table above for complete details.
What OE part numbers does this Air cleaner replace?
This Air cleaner replaces OE part numbers: 4K0 133 844 A, 4K0 133 844 E, 4KD 133 844 A. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Air cleaner cost?
This FEBI BILSTEIN Air cleaner is available for £31.99. Air cleaner 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 Air cleaner?
A dirty air filter can cause reduced fuel economy, engine misfires, unusual engine sounds, or reduced horsepower. Most manufacturers recommend replacement every 15,000-30,000 miles, or more frequently in dusty conditions.
What tools do I need to replace a Air cleaner?
Tools needed: none for most vehicles (airbox clips open by hand); some require a flat-head screwdriver or T20 Torx. Difficulty: Easy DIY. Safety warning: Ensure the airbox is fully sealed after fitting -- an air leak downstream of the mass airflow sensor will cause running problems and potential fuel mixture faults.
Can I use this part as a replacement for OE 4K0 133 844 A?
Yes, this FEBI BILSTEIN Air cleaner is a direct replacement for OE part number 4K0 133 844 A. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
