Mercedes-Benz 420SEL service by top-rated mechanics at the convenience of your home or office

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How much does Mercedes-Benz 420SEL repair and maintenance cost?

The cost depends on your car, the type of service, and where you live. Here are estimates for a selection of Mercedes-Benz 420SEL services.

Service Estimate Dealer Estimate Your Savings Location
Service type Serpentine/Drive Belt Replacement for 1989 Mercedes-Benz 420SEL V8-4.2L Estimate $113 Dealer Estimate $186 Savings 38.97% Location Denver, CO
Service type Spark Plug Replacement for 1987 Mercedes-Benz 420SEL V8-4.2L Estimate $83 Dealer Estimate $125 Savings 33.63% Location Denver, CO
Service type Water Pump Replacement for 1986 Mercedes-Benz 420SEL V8-4.2L Estimate $664 Dealer Estimate $1083 Savings 38.63% Location Denver, CO
Service type Valve Cover Gasket Replacement for 1986 Mercedes-Benz 420SEL V8-4.2L Estimate $153 Dealer Estimate $237 Savings 35.31% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1986 Mercedes-Benz 420SEL V8-4.2L Estimate $97 Dealer Estimate $153 Savings 36.61% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1991 Mercedes-Benz 420SEL V8-4.2L Estimate $97 Dealer Estimate $153 Savings 36.61% Location Denver, CO
Service type Car Air Filter Replacement for 1989 Mercedes-Benz 420SEL V8-4.2L Estimate $99 Dealer Estimate $157 Savings 36.98% Location Denver, CO
Service type Oxygen Sensor - Front/Upper/Upstream Replacement for 1987 Mercedes-Benz 420SEL V8-4.2L Estimate $231 Dealer Estimate $421 Savings 45.13% Location Denver, CO

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Meet some of our expert Mercedes-Benz 420SEL mechanics

Khoa

Khoa

73 Reviews; 16 years of experience
I would highly recommend Khoa as he showed up early for our appt ( He called in advance and I was available ). Khoa was able to resolve my problem and have me up and running in less then an hour. I will definitely use him again in the future.
Redwood City, CA
February 27
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Keith

Keith

16 Reviews; 7 years of experience
As i have described below
Spring, TX
March 17
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Mahdi

Mahdi

15 Reviews; 6 years of experience
I appreciated his knowledge. He was thorough and took his time to ensure his diagnosis was accurate.
Atlanta, GA
December 29
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Fast and easy Mercedes-Benz 420SEL services at your home or office.

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Answers to common Mercedes-Benz 420SEL questions

Q: Car will not start/no fuel - 1989 Mercedes-Benz 420SEL
Answered by David
If you are certain it is the fuel (i.e. you have confirmed good spark at the plugs), start with power to the fuses (fuel pump), then the fuel pump relay to follow the power path to the fuel pump. It's...
Q: Car running sluggish then dies - 1988 Mercedes-Benz 420SEL
Answered by Robert
Hello. I would check the fuel filter (https://www.yourmechanic.com/services/fuel-filter-replacement) first. If the filter is clogged then this will occur. If the fuel filter is fine then the air flow meter needs to be checked. This is the most common part to...
Q: Sunroof malfunctioning
Answered by Evan
It is possible that the cable or motor that moves the sunroof are broken or failing. There is also the possibility that there is some debris or object in the track for your sunroof. I would ask for help from...
Q: Ignition key not working - 1987 Mercedes-Benz 420SEL
Answered by Robert
It's quite likely the battery is dead, and all electrical functions are inoperative. All of the locks have mechanical actuators. A certified technician from YourMechanic can replace your battery (https://www.yourmechanic.com/services/battery-replacement) at your home or office and get you on your...

Fast and easy Mercedes-Benz 420SEL services at your home or office.

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Whitney was obvious exsperienced and knowlegeable of the problem. His actions was that of a true profesional



Ben was great. He arrived early, completed the work quickly & cleanly, and was quite amiable. I didn't have to leave my home and got the maintenance completely with ease - 5 stars.



Very impressed with the quality of work. Ned was on time and on budget. There were no surprise extra costs. Ned even helped me out with my other car, even though I didn't have an appointment for the other car. He took care of all of my car problems and he even found me a coupon for an oil change. I will be using this service again.

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