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Details
| Specification | Value |
|---|---|
| Brand | MAHLE |
| MPN | tx182105d |
| Opening Temperature [°C] | 105 °C |
| Diameter 1 [mm] | 34 mm |
| Packaging length [cm] | 8.7 cm |
| Packaging width [cm] | 6.70 cm |
| Packaging height [cm] | 9.20 cm |
| Net Weight [g] | 55 g |
OE/OEM numbers (1)
Search by this OE number to find compatible parts
Show all 1 OE numbers
- AUDI / CUPRA / VW—03C121110E
About this product
When thermostat coolant performance matters, the MAHLE TX 182 105D delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Opening Temperature [°C]: 105 °C, Diameter 1 [mm]: 34 mm, Supplementary Article/Supplementary Info: 35, Packaging length [cm]: Carbon, Ceramic cm, Packaging width [cm]: Plastic, 70 cm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Compatible with VW vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 03C121110E, 725203, 78618S, TH435105G1. Matching these numbers confirms a like-for-like replacement with no loss of function. MAHLE 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 MAHLE
MAHLE, founded in 1920 in Stuttgart, Germany, is a global leader in engine components and filtration systems. MAHLE specialises in pistons, cylinder liners, gaskets, turbocharger components, oil filters, air filters, and fuel filters. As an OE supplier to nearly every car and truck manufacturer worldwide, MAHLE products are engineered to exact factory specifications. Trusted by professional workshops and racing teams alike, MAHLE delivers outstanding engine performance and filtration efficiency across millions of applications.
Suitable cars
Equivalent products (3)
Thermostat Coolant MAHLE TX 182 105D — compatible car models
| Car models | VW: GOLF PLUS V (5M1, 521), GOLF V (1K1), POLO IV (9N_, 9A_) |
|---|---|
| Engines | 1.4 FSI |
| Year of manufacture | 2001-2014 |
| Manufacturer article number (MPN) | TX 182 105D |
| OE part numbers | 03C121110E |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MAHLE tx182105d BEHR. Diameter 1 [mm]: 34 mm. Net Weight [g]: 55 g. Opening Temperature [°C]: 105 °C. Packaging height [cm]: 9,20 cm. Packaging length [cm]: 8,7 cm. Packaging width [cm]: 6,70 cm. Supplementary Article/Supplementary Info: 35
- 1x Thermostat Coolant
Shipping, returns, warranty
Free UK delivery on orders over £99. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 30 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 30-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 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 MAHLE Thermostat Coolant have?
This MAHLE Thermostat Coolant has the following specifications: Opening Temperature [°C]: 105 °C; Diameter 1 [mm]: 34 mm; Supplementary Article/Supplementary Info: 35; Packaging length [cm]: 8,7 cm; Packaging width [cm]: 6,70 cm; Packaging height [cm]: 9,20 cm. 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: 03C121110E. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Thermostat Coolant cost?
This MAHLE Thermostat Coolant is available for £38.99. Thermostat Coolant prices vary depending on brand, specifications, and vehicle compatibility. MAHLE parts offer a balance of quality and value, backed by our 30-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 03C121110E?
Yes, this MAHLE Thermostat Coolant is a direct replacement for OE part number 03C121110E. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
