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Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| Length [mm] | 570 mm |
| Weight [kg] | 0,069 kg |
OE numbers (2)
Search by this OE number to find compatible parts
- AUDI / SKODA / VW—078 905 377
- AUDI / SKODA / VW—78 905 377
Where this part fits
Original-fit position for OE 078905377. The red ring marks where this part installs on the vehicle.
About this product
The FEBI BILSTEIN Knock Sensor (43772) 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: Length [mm]: 570 mm, Weight [kg]: 0, 069 kg, Number of connectors: Cast Iron. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit AUDI, SKODA, VW 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: 078 905 377, 0907098, 114 811 0015, 1.957.053 and 34 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Knock Sensor buying guide
Why replace this part?
The knock sensor detects engine detonation, allowing the ECU to retard ignition timing before piston or bearing damage occurs. A faulty knock sensor leaves the engine vulnerable to detonation damage or causes excessive timing retard that reduces power.
Signs you need a replacement
- Check engine light with P0325–P0334 codes
- loss of power and performance under load
- increased fuel consumption
- audible pinging or knocking when accelerating
- poor throttle response
When to replace
No fixed interval — replace on failure. Knock sensors can fail from heat cycles or mechanical vibration over high mileage.
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 (39)
Show all 39 OE numbers
Knock Sensor FEBI BILSTEIN 43772 — compatible car models
| Car models | AUDI: A4 B5 (8D2), A4 B5 Avant (8D5), A6 C5 (4B2, 4B4), A6 C5 Avant (4B5, 4B6), A8 D2 (4D2, 4D8), ALLROAD C5 (4BH); SKODA: SUPERB I (3U4); VW: PASSAT B5 (3B2), PASSAT B5.5 (3B3), PASSAT B5.5 Variant (3B6), PASSAT B5 Variant (3B5) |
|---|---|
| Engines | 2.4; 2.8; 2.7 quattro; 2.8 V6; 2.8 Syncro |
| Year of manufacture | 1994-2008 |
| Manufacturer article number (MPN) | 43772 |
| OE part numbers | 078 905 377, 78 905 377 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 43772 . Length [mm]: 570 mm. Number of connectors: 3. Weight [kg]: 0,069 kg
- 1x Knock Sensor
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- 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 Knock Sensor compatible with my car?
This Knock Sensor fits AUDI, SKODA, VW 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 Knock Sensor have?
This FEBI BILSTEIN Knock Sensor has the following specifications: Length [mm]: 570 mm; Weight [kg]: 0,069 kg; Number of connectors: 3. Check the full specifications table above for complete details.
What OE part numbers does this Knock Sensor replace?
This Knock Sensor replaces OE part numbers: 078 905 377, 78 905 377. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Knock Sensor cost?
This FEBI BILSTEIN Knock Sensor is available for £40.99. Knock Sensor 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 Knock Sensor?
The knock sensor protects the engine from detonation — a fault causes the ECU to retard ignition timing as a precaution, leading to reduced power and fuel economy. The check engine light with knock sensor codes is the primary indicator.
What tools do I need to replace a Knock Sensor?
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 Knock Sensor fitted by a professional mechanic.
Can I use this part as a replacement for OE 078 905 377?
Yes, this FEBI BILSTEIN Knock Sensor is a direct replacement for OE part number 078 905 377. 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.
