Mercedes W202 C Class C250 Diesel Auxiliary Circulation Water Pump 2028300014
Mercedes W202 C Class C250 Diesel Auxiliary Circulation Water Pump 2028300014
MERCEDES C-CLASS W202 C250 DIESEL AUXILIARY COOLANT CIRCULATION WATER PUMP
Factory Heater Residual Heat (REST) Auxiliary Water Circulation Pump | Part Number: 2028300014 / 32017997
| Category | Reference / Engineering Details | Description & Material Notes |
|---|---|---|
| Component Type: | Auxiliary Water Pump Circulation Pump | Electric auxiliary coolant booster pump for cabin heating and engine temperature regulation. |
| Primary Part Number: | 2028300014 / A2028300014 | Original stamped Mercedes-Benz component reference number. |
| Secondary / Internal Ref: | 32017997 | Manufacturer batch / production casting identification code. |
| Material Build: | Reinforced PPS / Brass Windings | High-temperature PPS composite body with heavy-duty electromagnetic motor housing and rubber mounting dampers. |
Compare your vehicle details below. Always verify visually with the provided photos and match part numbers prior to ordering:
| Make & Model | Body Style | Engine Variant | Model Years |
|---|---|---|---|
| Mercedes-Benz C-Class (W202) | 4-Door Saloon | C 250 Diesel (113 bhp / OM605.910) | 1993 – 1998 |
| Mercedes-Benz C-Class (W202) | 4-Door Saloon | C 250 Turbo-Diesel (150 bhp / OM605.960) | 1995 – 2000 |
| Mercedes-Benz C-Class Estate (S202) | 5-Door Estate / Wagon | C 250 Turbo-Diesel (150 bhp / OM605.960) | 1996 – 2001 |
• Mercedes-Benz W202 / S202 C-Class models (1993–2001) matching part number 2028300014.
• Direct plug-and-play fitment for 2.5 Diesel and 2.5 Turbo-Diesel variants.
• W203 / W204 C-Class generations (2000+ onwards).
• Vehicles equipped with different auxiliary pump plug shapes or differing OEM part numbers.
To ensure you receive the correct part the first time and prevent unnecessary returns, please verify fitment using our photos and part number reference. Any items returned under the "Doesn't Fit" or "Item Not As Described" categories where fitment was clearly stated will have a 50% restocking fee deducted. If you are unsure, send us your REG or VIN via WhatsApp before buying so our technicians can verify fitment for you!
Please ensure your checkout delivery address is 100% accurate at the time of purchase. Under eBay regulations, we cannot alter or change dispatch addresses once payment is completed.
What it Controls: Drives hot engine coolant into the interior cabin heater matrix, maintaining stable cabin warmth at engine idle and enabling the REST residual heat function.
- Cold Cabin Heating at Idle: Interior blowers emit cold air when waiting at traffic lights or idling.
- Non-Functional REST Button: Residual heat feature blows cold air shortly after engine shut-off.
- Noisy Auxiliary Pump Motor: Squealing, grinding, or buzzing sounds coming from the inner engine bay.
- Original Thermal Resistance: Built with high-spec copper motor armatures that resist burnout.
- Precision Flow Rate: Engineered to match factory duovalve coolant pressures without causing heater matrix leaks.
- Exact Plug Fitment: OEM 2-pin electrical connector fits seamlessly into factory wiring harness.
- Save Up To 70%: Buying tested original recycled components saves up to 70% compared to main dealership counter prices!
Estimated Repair Time: 30 – 45 Minutes | Difficulty: Easy / Beginner
Required Tools: Hose pinch clamps, screwdriver set, catch tray for residual coolant.
- Allow engine to cool down fully to prevent pressure burns.
- Clamp the two coolant hoses attached to the auxiliary water pump to minimize fluid loss.
- Unclip the 2-pin electrical connector from the pump housing.
- Loosen hose clamps and slide hoses off the pump nozzles.
- Unclip or unbolt the pump from its rubber mounting bracket and install the replacement unit.
Estimated garage fitting charges based on regional labor rates vs. DIY fitting:
| Rate Type | Hourly Rate | Estimated Labor | Your Total Saving |
|---|---|---|---|
| Independent Garage | £60 - £80 / hr | £40 - £60 | SAVE £50+ |
| Mercedes Main Dealer | £120 - £180 / hr | £120 - £180 | SAVE OVER 70% |
| DIY Installation | £0 (Free) | £0 | MAXIMUM SAVINGS |
Professional Installation Available: We offer a professional fitting service at our fully equipped repair facility (subject to appointment availability). Contact us to book!
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*Standard tracked carriage rates apply at checkout (no free postage).
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