BMW 840Ci 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 BMW 840Ci Exhaust Manifold Gasket Replacement is $257 with $67 for parts and $190 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1995 BMW 840CiV8-4.0LService typeExhaust Manifold Gasket ReplacementEstimate$364.10Shop/Dealer Price$432.64 - $559.48
1994 BMW 840CiV8-4.0LService typeExhaust Manifold Gasket ReplacementEstimate$324.10Shop/Dealer Price$392.70 - $519.59
1997 BMW 840CiV8-4.4LService typeExhaust Manifold Gasket ReplacementEstimate$609.07Shop/Dealer Price$730.25 - $896.58
1996 BMW 840CiV8-4.4LService typeExhaust Manifold Gasket ReplacementEstimate$609.07Shop/Dealer Price$730.06 - $896.24
Show example BMW 840Ci 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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Adam

17 years of experience
231 reviews
Adam
17 years of experience
BMW 840Ci V8-4.4L - Car is not starting - Boynton Beach, Florida
Adam was great. He was on-time and had to wait because of a stupid HOA rule. He got the car started again recommended a good charger, and was extremely through in his inspection that identified a couple problem with the oil caps that need to be replaced. I highly recommend Adam and plan n using him again when i receive the quote for the recommended services.

Jeremy

20 years of experience
603 reviews
Jeremy
20 years of experience
BMW 840Ci V8-4.4L - Battery - Boynton Beach, Florida
On time, nice guy, always does a good job. I will be in touch with him and YourMechanic.com again in the near future. Thanks again!

Duane

25 years of experience
512 reviews
Duane
25 years of experience
BMW 530i L6-3.0L - Exhaust Manifold Gasket - Chula Vista, California
replaced exhaust manifold, showed up early and I thought he did a good job.

Torrieanto

12 years of experience
632 reviews
Torrieanto
12 years of experience
BMW M3 L6-3.2L - Exhaust Manifold Gasket - Saint Petersburg, Florida
Excellent and efficient work all around. I would definitely recommend choosing Torrieanto. He completed a job with ease that others find very difficult. Also, he’s a good dude from back home in Wisconsin!

Excellent Rating

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Rating Summary
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Number of BMW Exhaust Manifold Gasket Replacement services completed
22+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
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