BMW 540i Catalytic Converter Replacement at your home or office.

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Catalytic Converter Replacement Service

How much does a Catalytic Converter Replacement cost?

On average, the cost for a BMW 540i Catalytic Converter Replacement is $694 with $505 for parts and $189 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 BMW 540iV8-4.4LService typeCatalytic Converter ReplacementEstimate$1527.43Shop/Dealer Price$1854.69 - $2727.30
2002 BMW 540iV8-4.4LService typeCatalytic Converter ReplacementEstimate$1461.43Shop/Dealer Price$1788.79 - $2661.47
1997 BMW 540iV8-4.4LService typeCatalytic Converter ReplacementEstimate$1423.93Shop/Dealer Price$1741.90 - $2586.46
1994 BMW 540iV8-4.0LService typeCatalytic Converter ReplacementEstimate$1198.94Shop/Dealer Price$1477.88 - $2255.18
1995 BMW 540iV8-4.0LService typeCatalytic Converter ReplacementEstimate$1198.94Shop/Dealer Price$1478.00 - $2255.39
2001 BMW 540iV8-4.4LService typeCatalytic Converter ReplacementEstimate$1461.43Shop/Dealer Price$1788.78 - $2661.46
2000 BMW 540iV8-4.4LService typeCatalytic Converter ReplacementEstimate$1527.43Shop/Dealer Price$1840.13 - $2701.83
1999 BMW 540iV8-4.4LService typeCatalytic Converter ReplacementEstimate$1527.43Shop/Dealer Price$1842.29 - $2705.60
Show example BMW 540i Catalytic Converter Replacement prices

What is the Catalytic Converter all about?

The catalytic converter is an emissions related component that is mounted in the exhaust pipe. Its purpose is to superheat unburned particles in the exhaust gases that are expelled from the engine. As the engine runs, the catalytic converter warms up to an operating temperature of 500-1200 °F. At this temperature the particles in the ‘dirty’ exhaust are burned and converted into water vapor and carbon dioxide. The catalyst inside is nearly always comprised of precious metals such as platinum, rhodium, or palladium. When the catalyst isn’t able to burn off the unburned hydrocarbons in the exhaust, an unpleasant odor can occur, a rough run or misfire may be felt, or the Check Engine light may illuminate.

Keep in mind:

  • Most cars will require the aftermarket Catalytic Converter to be welded to the exhaust pipes. Mobile mechanics can only do this service if you have a direct fit catalytic converter bought from a dealer.
  • When replacing the catalytic converter, it may be necessary to replace oxygen sensors as well.
  • Catalytic converter symptoms are often similar to other more straightforward issues. Get the Check Engine light diagnosed anytime it illuminates.

How it's done:

  • The vehicle is raised and supported on jack stands
  • The defective catalytic converter is removed
  • The new catalytic converter is installed and the vehicle is started to check for any leaks
  • The vehicle is lowered off the jack stands
  • The vehicle is road tested for proper operation

Our recommendation:

If you are consistently taking short trips with your vehicle, the catalytic converter may not be getting hot enough to completely burn away the hydrocarbons. To prevent the catalytic converter from getting clogged, take your vehicle for the occasional drive on the highway for 15 minutes. This allows the exhaust to sufficiently heat up and burn off any deposits in the catalytic converter.

What common symptoms indicate you may need to replace the Catalytic Converter?

  • Check engine light is on or flashing
  • Car has little or no power
  • Smell of rotten eggs inside the car or out of the exhaust
  • Poor fuel economy
  • Backfiring and rough running

How important is this service?

If the catalytic converter isn’t operating efficiently, the check engine light will come on and your engine can begin to lose performance. If the catalytic converter becomes plugged, the engine light will begin to flash and your engine may stall or no longer start. In extreme cases where the converter is plugged, the excess back pressure created can actually cause internal engine damage. If you are experiencing symptoms related to catalytic converter failure, get it checked soon.

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Excellent Rating

(61)

Rating Summary
57
3
0
0
1
57
3
0
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1

Roger

15 years of experience
55 reviews
Roger
15 years of experience
BMW 540i V8-4.4L - Car is not starting - Austin, Texas

Danny

11 years of experience
269 reviews
Danny
11 years of experience
BMW 540i V8-4.0L - Accelerator Cable - Trenton, New Jersey
Did a solid job and was great to work with. Room for improvement: stick to scheduled appointment. My appointment was rescheduled 3 times.

Joseph

27 years of experience
578 reviews
Joseph
27 years of experience
BMW 540i V8-4.4L - Coolant is leaking - Missouri City, Texas
I think Joseph is very nice and very knowledgeable was on time and very respectful and helpful

James

31 years of experience
705 reviews
James
31 years of experience
BMW 540i L6-3.0L Turbo - Oil Change - Fullerton, California
He’s my go to guy for car repairs

Excellent Rating

(61)

Rating Summary
57
3
0
0
1
57
3
0
0
1
Number of BMW 540i services completed
671+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

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