Mercedes-Benz 420SEL Exhaust Manifold Gasket Replacement at your home or office.

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Exhaust Manifold Gasket Replacement Service

How much does a Exhaust Manifold Gasket Replacement cost?

On average, the cost for a Mercedes-Benz 420SEL Exhaust Manifold Gasket Replacement is $617 with $9 for parts and $608 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1991 Mercedes-Benz 420SELV8-4.2LService typeExhaust Manifold Gasket ReplacementEstimate$776.29Shop/Dealer Price$896.15 - $995.81
1989 Mercedes-Benz 420SELV8-4.2LService typeExhaust Manifold Gasket ReplacementEstimate$658.52Shop/Dealer Price$783.38 - $905.47
1990 Mercedes-Benz 420SELV8-4.2LService typeExhaust Manifold Gasket ReplacementEstimate$677.51Shop/Dealer Price$805.86 - $930.57
1986 Mercedes-Benz 420SELV8-4.2LService typeExhaust Manifold Gasket ReplacementEstimate$658.52Shop/Dealer Price$783.11 - $905.00
1987 Mercedes-Benz 420SELV8-4.2LService typeExhaust Manifold Gasket ReplacementEstimate$658.52Shop/Dealer Price$783.54 - $905.75
1988 Mercedes-Benz 420SELV8-4.2LService typeExhaust Manifold Gasket ReplacementEstimate$658.52Shop/Dealer Price$783.36 - $905.44
Show example Mercedes-Benz 420SEL Exhaust Manifold Gasket Replacement prices

What is the Exhaust Manifold Gasket all about?

Depending on your engine and type of vehicle, the exhaust manifold can either be a set of pipes or it can be a cast iron manifold assembly. Essentially the exhaust manifold takes the burned exhaust gases from the engine’s cylinders and ejects the gas through the exhaust system and out through the car's tail pipe. The exhaust manifold gasket seals the surface of the exhaust manifold to the surface of the cylinder head, preventing leaks in the system. Over time, the constant expansion and contraction of the components (caused by constant heating and cooling in the engine), may cause the gasket to leak. These leaks can be hazardous as hot exhaust gases escape and can damage other components in the engine compartment. A leaky exhaust manifold gasket can also impact engine performance.

Keep in mind:

Sometimes an exhaust manifold starts to leak because a mounting bolt has broken. If this happens, the mechanic will have to remove the broken bolt or stud, which can increase the labor time needed to fix the problem. Your mechanic may charge you an additional fee, depending on the severity of the situation.

How it's done:

  • Inspect exhaust system for leaks.
  • Determine if it is the manifold or flange gasket that is leaking.
  • Remove and replace faulty gasket.
  • Apply anti-seize to the threads of the bolts.
  • Install new exhaust manifold gasket.
  • Start car and check for any exhaust leaks.

Our recommendation:

The exhaust manifold gasket helps in transferring burned gasses from the engine. It is located in a high temperature zone, and it will leak eventually. There is no way to prevent it. Your mechanic should use anti-seize compound on the bolts when they are replacing this part. This will help prevent bolts from breaking in the cylinder head.

What common symptoms indicate you may need to replace the Exhaust Manifold Gasket?

  • Loud noise from engine.
  • Lack of engine performance.
  • Check engine light is on.
  • Smells from the engine compartment (eg. plastic components next to exhaust manifold melting from escaped heat).

How important is this service?

A leaky exhaust manifold is a health and safety concern. Hot exhaust gases escaping from the engine can be a fire hazard melting nearby plastic components in the engine compartment.

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Sayeed

17 years of experience
82 reviews
Sayeed
17 years of experience
Mercedes-Benz 420SEL V8-4.2L - Power Steering Fluid Service - Copiague, New York
Excellent

Erick

10 years of experience
182 reviews
Erick
10 years of experience
Mercedes-Benz 420SEL V8-4.2L - Oil Change - Palo Alto, California

Christian

22 years of experience
68 reviews
Christian
22 years of experience
Mercedes-Benz 420SEL V8-4.2L - Ignition Cable (Spark plug wires) - Hayward, California
Sometime he runs a little late on his appointment but the good thing about it he gives me a call and let's me know that he's stuck in traffic are whatever other variables that might occur

Pardeep

21 years of experience
1115 reviews
Pardeep
21 years of experience
Mercedes-Benz 420SEL V8-4.2L - Brake System Flush - Cupertino, California
Excellent communication, fast, accurate, and knowledgeable.

Excellent Rating

(18)

Rating Summary
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Number of Mercedes-Benz 420SEL services completed
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