Mercedes-Benz 420SEL Water Pump Replacement at your home or office.

Our certified mechanics come to you・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Logo-yelp
CUSTOMERS LOVE US ON YELP
4.5 out of 5 (550 reviews)
Icon-warranty_badge-02
SERVICES BACKED BY OUR
12-Month, 12,000-Mile Warranty
How does YourMechanic work?    
Icon-quote-hiw
Get a quote

Choose from 600+ repair, maintenance, and diagnostic services, backed by our 12-month, 12,000-mile warranty.

Icon-calendar-hiw
Book an appointment

Tell us when to meet you at your home or office. We’ll send one of our vetted, top-rated mechanics.

Icon-fixed-hiw
Get your car fixed

Continue with your day while our mechanic fixes your car onsite. You pay only after the job is done.

Water Pump Replacement Estimate for Mercedes-Benz 420SEL

Mercedes-Benz 420SEL Water Pump Replacement costs $591 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$585 to $652
Labor: $413 -$480
Parts: $172
Average Dealer price
$892 to 902
Average Shop price
$706 to 714
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
1986 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$763.06Shop/Dealer Price$1001.29 - $1372.93
1987 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$763.06Shop/Dealer Price$1002.01 - $1374.19
1989 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$763.06Shop/Dealer Price$1001.54 - $1373.37
1991 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$756.06Shop/Dealer Price$992.21 - $1362.29
1990 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$756.06Shop/Dealer Price$991.86 - $1361.68
1988 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$763.06Shop/Dealer Price$1001.23 - $1372.84
Show example Mercedes-Benz 420SEL Water Pump Replacement prices

Water Pump Replacement Service & Cost

What is the Water Pump all about?

The water pump, a container made of aluminum or iron, is part of the cooling system. It contains an impeller (looks like a fan) that circulates water and coolant throughout the cooling system, keeping the engine from overheating. It is located in the engine compartment. For the water pump to work, it needs to turn. This is accomplished either by the drive belt or timing belt/chain. If the water pump is not working, the coolant will not circulate through the cooling system causing the engine to overheat and get severe damages.

Keep in mind:

  • When the water pump is replaced, the drive belts and timing belt/chain may need to be replaced as well.
  • The entire cooling system should be inspected when the water pump is replaced.
  • Replacing the thermostat at the same time as the water pump can help prevent future problems.

How it's done:

  • Pressure test the cooling system for leaks.
  • Remove and replace the water pump if bad.
  • Fill with new coolant.
  • Install new radiator cap.
  • Install new thermostat.
  • Test drive car.

Our recommendation:

If you see coolant (green, red, or yellow fluid) underneath your car, have the cooling system inspected for leaks. Always keep up with the service intervals as specified by the manufacturer and get the coolant replaced. It is a good practice to get the coolant replaced every 50,000 miles. This will help ensure a long life for the water pump and the entire cooling system.

What common symptoms indicate you may need to replace the Water Pump?

  • Coolant (green, red or yellow fluid) is leaking.
  • Car is overheating.
  • Car does not start.

How important is this service?

A car’s engine generates so much heat that it can damage itself if it is not cooled down. To prevent this, your vehicle has a cooling system. The water pump is responsible for circulating coolant through the engine. This coolant absorbs heat from the engine, and is then cooled down by a fan. When the water pump malfunctions, the cooling system has no way of sending coolant into the engine, and the engine will overheat, which can cause severe damage.

Fast and easy Water Pump Replacement service at your home or office.

GET A QUOTE FOR YOUR CAR
Backed by 12-month, 12,000-mile guarantee

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

415 reviews
Robert
27 years of experience
Robert did brakes on my truck, and a water pump on my Mercedes. He worked clean and efficiantly. Everything seems to work fine. I would definitely recommend him to friends! Thanks, Bob
2004 MERCEDES-BENZ S430 - WATER PUMP REPLACEMENT
170 reviews
Nicholas
7 years of experience
The BEST around! #Salute
2010 MERCEDES-BENZ C300 - OIL CHANGE
126 reviews
Manuel
28 years of experience
Awesome service and Manuel was very helpful and honest! I will definitely use Manuel and yourmechanic.com again. :)
2003 MERCEDES-BENZ CLK320 - DRIVE BELT TENSIONER REPLACEMENT
40 reviews
Jay
12 years of experience
Jays is such a gentlemen, I am very happy and please with his service. I will definitely book him again. Thank you
2012 MERCEDES-BENZ C300 - UBERX INSPECTION AND OIL CHANGE PACKAGE
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
1986 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$763.06Shop/Dealer Price$1001.29 - $1372.93
1987 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$763.06Shop/Dealer Price$1002.01 - $1374.19
1989 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$763.06Shop/Dealer Price$1001.54 - $1373.37
1991 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$756.06Shop/Dealer Price$992.21 - $1362.29
1990 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$756.06Shop/Dealer Price$991.86 - $1361.68
1988 Mercedes-Benz 420SELV8-4.2LService typeWater Pump ReplacementYourMechanic Price$763.06Shop/Dealer Price$1001.23 - $1372.84
Show example Mercedes-Benz 420SEL Water Pump Replacement prices

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com