- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
Details
| Specification | Value |
|---|---|
| Brand | FEBI BILSTEIN |
| Opening Temperature [°C] | 85 °C |
| Weight [kg] | 0.05 kg |
OE numbers (4)
Search by this OE number to find compatible parts
- VW—03C 121 110 C
- AUDI / SKODA / VW—03C 121 110 F
- VW—3C 121 110 C
- AUDI / SKODA / VW—3C 121 110 F
Where this part fits
Original-fit position for OE 03C121110F. The red ring marks where this part installs on the vehicle.
About this product
The FEBI BILSTEIN Thermostat Coolant (36648) 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: Opening Temperature [°C]: 85 °C, Weight [kg]: 0, 05 kg. 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: 01681, 03C 121 110 C, 03C 121 110 F, 11211571701 and 63 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.
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 (69)
Show all 69 OE numbers
Thermostat Coolant FEBI BILSTEIN 36648 — compatible car models
| Car models | AUDI: A3 (8P1), A3 Sportback (8PA); SKODA: OCTAVIA II (1Z3), OCTAVIA II Combi (1Z5); VW: EOS (1F7, 1F8), GOLF PLUS V (5M1, 521), GOLF V (1K1), JETTA III (1K2), PASSAT B6 (3C2), PASSAT B6 Variant (3C5), TOURAN (1T1, 1T2), TOURAN VAN (1T1, 1T2) |
|---|---|
| Engines | 1.6 FSI; FSI |
| Year of manufacture | 2003-2015 |
| Manufacturer article number (MPN) | 36648 |
| OE part numbers | 03C 121 110 C, 03C 121 110 F, 3C 121 110 C, 3C 121 110 F |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FEBI BILSTEIN 36648 . Opening Temperature [°C]: 85 °C. Weight [kg]: 0,05 kg
- 1x Thermostat Coolant
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 Thermostat Coolant compatible with my car?
This Thermostat Coolant 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 Thermostat Coolant have?
This FEBI BILSTEIN Thermostat Coolant has the following specifications: Opening Temperature [°C]: 85 °C; Weight [kg]: 0,05 kg. Check the full specifications table above for complete details.
What OE part numbers does this Thermostat Coolant replace?
This Thermostat Coolant replaces OE part numbers: 03C 121 110 C, 03C 121 110 F, 3C 121 110 C, 3C 121 110 F. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Thermostat Coolant cost?
This FEBI BILSTEIN Thermostat Coolant is available for £32.99. Thermostat Coolant 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 Thermostat Coolant?
Symptoms include engine overheating, heater not producing warm air, temperature gauge fluctuations, or coolant leaks near the thermostat housing.
What tools do I need to replace a Thermostat Coolant?
Tools needed: hose clamp pliers, 8-10mm socket, torque wrench, drain pan, new coolant. Difficulty: Moderate DIY. Safety warning: Never open the cooling system on a warm or hot engine -- coolant is under pressure and causes scalding. Always use the correct coolant specification to avoid corrosion with aluminium engine components.
Can I use this part as a replacement for OE 03C 121 110 C?
Yes, this FEBI BILSTEIN Thermostat Coolant is a direct replacement for OE part number 03C 121 110 C. 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.
