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Mercedes-Benz S-Class, CL-Class Auxiliary Water Pump A2218350064 2005-2013
Mercedes-Benz S-Class, CL-Class Auxiliary Water Pump A2218350064 2005-2013
Mercedes-Benz S-Class, CL-Class Auxiliary Water Pump A2218350064 2005-2013
Mercedes-Benz S-Class, CL-Class Auxiliary Water Pump A2218350064 2005-2013
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Genuine- Mercedes-Benz

Mercedes-Benz S-Class, CL-Class Auxiliary Water Pump A2218350064 2005-2013

$500.00
$498.75 In Stock Pre-Order Sold out
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Fitment

Fitment is confirmed against your VIN before dispatch.

Specifications

ConditionNew Genuine
Model S-Class , CL-Class
Country of MfrGermany
Year2005-2013
Warranty6 Months
TypeAuxilary Water pump
Mfr Part NumberA2218350064, 2218350064
Superseded PNA2118300014, 2118300014
  • Description
  • Fitment
  • Shipping
  • Reviews

 

OEM-spec Auxiliary Water Pump (Heater Circulation Pump) for the Mercedes-Benz W221 and C216 (CL550, CL600, CL63, CL65, S350, S400, S550). Replaces A2218350064. Restore consistent cabin heat!

What’s Included

This is a brand-new, factory-sealed engine cooling/climate control component.

  • 1x OEM-Spec Electric Auxiliary Water Pump - Replaces A2218350064

Component Primary OEM Part Numbers Common Supersessions & Formats
Auxiliary Water Pump A2218350064 A 221 835 00 64, 2218350064, 221 835 00 64, 221-835-00-64

 

Brand Model Year
Mercedes-Benz S-Class (W221) S 250 CDI 2011–2013
Mercedes-Benz S-Class (W221) S 280 / S 300 2006–2013
Mercedes-Benz S-Class (W221) S 320 CDI / 4-matic 2005–2013
Mercedes-Benz S-Class (W221) S 350 / 4-matic 2005–2013
Mercedes-Benz S-Class (W221) S 350 BlueTEC / 4-matic 2011–2013
Mercedes-Benz S-Class (W221) S 350 CDI / 4-matic 2009–2013
Mercedes-Benz S-Class (W221) S 350 CGI / 4-matic 2011–2013
Mercedes-Benz S-Class (W221) S 400 Hybrid 2009–2013
Mercedes-Benz S-Class (W221) S 420 CDI / S 450 CDI 2006–2013
Mercedes-Benz S-Class (W221) S 450 / 4-matic 2005–2013
Mercedes-Benz S-Class (W221) S 500 / CGI / 4-matic 2005–2013
Mercedes-Benz S-Class (W221) S 550 2011–2013
Mercedes-Benz S-Class (W221) S 600 2005–2013
Mercedes-Benz S-Class (W221) S 63 AMG 2006–2013
Mercedes-Benz S-Class (W221) S 65 AMG 2005–2013
Mercedes-Benz S-Class Coupe (C216) CL 500 / 4-matic 2006–2013
Mercedes-Benz S-Class Coupe (C216) CL 600 2006–2013
Mercedes-Benz S-Class Coupe (C216) CL 63 AMG 2006–2013
Mercedes-Benz S-Class Coupe (C216) CL 65 AMG 2006–2013

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Order Processing

Standard orders
1–7 days
Business days to dispatch
Custom & special orders
Varies
Based on sourcing & availability

For custom and special orders, we will contact you directly with an estimated timeframe before dispatch.

Estimated Delivery Times

All orders (WORLDWIDE)
2–5 days
Business days after dispatch
Custom & special orders
Varies
Based on sourcing & availability

International delivery times are estimates and may be affected by customs clearance procedures in the destination country.

Shipping Rates

United Arab Emirates Free Shipping — All Orders

United States (USA)

Order Type Rate (USD)
Eligible Designated Items (USA only) $10.00 flat
Standard Orders: $0.00 – $300.00 $75.00
Standard Orders: $300.01 and up Free

The $10 flat rate applies only to select qualified products. If eligible $10 items are purchased alongside standard products, shipping is calculated per item profile and combined at checkout.

Rest of World
For all other destinations, orders over $300 ship free. Orders under $300 are charged a flat rate:

Order Subtotal Rate (USD)
$0.00 – $300.00 $75.00
$300.01 and up Free

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Frequently Asked Questions

Is this the primary engine water pump?
No. Your engine utilizes a massive, mechanically driven (or heavily integrated) primary water pump bolted to the front of the engine block to cool the engine itself. This specific part (A2218350064) is a smaller, electrically driven auxiliary pump primarily tasked with circulating hot coolant to the cabin heater core.
Why does my heater only blow hot air when I am driving?
This is the textbook symptom of a failed auxiliary water pump. When stopped at a red light, your engine RPM drops, and the primary mechanical water pump isn't spinning fast enough to push hot coolant all the way into the cabin heater core on its own. The auxiliary pump is supposed to take over and assist this flow. If it's broken, the hot coolant stops flowing, and your vents will blow cold air until you step on the gas again.
Do I need to drain my coolant to install this?
Yes. Because you will be disconnecting active coolant hoses, you will lose a significant amount of engine coolant. It is highly recommended to perform a partial or complete coolant flush using the correct Mercedes-Benz specification blue/pink coolant (depending on your year) while replacing this pump. The system must also be properly bled of air pockets after installation.
Does this fit all W221 S-Class models?
This specific pump is utilized across a vast majority of the W221 and C216 production run, including the V8, V12, AMG, and Hybrid architectures. However, always verify your exact part number, as vehicles without certain climate control options (like the auxiliary heater code 228) may utilize a different plumbing layout.