BMW 750iL 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 750iL Catalytic Converter Replacement is $617 with $494 for parts and $123 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1988 BMW 750iLV12-5.0LService typeCatalytic Converter ReplacementEstimate$1137.45Shop/Dealer Price$1407.19 - $2165.23
1989 BMW 750iLV12-5.0LService typeCatalytic Converter ReplacementEstimate$1111.45Shop/Dealer Price$1381.23 - $2139.30
Show example BMW 750iL 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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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(11)

Rating Summary
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10
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Jose

15 years of experience
249 reviews
Jose
15 years of experience
BMW 750iL V12-5.4L - Coolant is leaking - Clearwater, Florida
He did a great job

Dayan

17 years of experience
23 reviews
Dayan
17 years of experience
BMW 750iL V12-5.0L - Battery - Miami, Florida
Daysn is an excellent mechanic. He doesnt give up until the job is done no matter how difficult. I recommend him to anyone.

Adam

16 years of experience
64 reviews
Adam
16 years of experience
BMW 750iL V12-5.0L - Serpentine/Drive Belt - Plano, Texas
I highly recommend Adam to anyone needing work to their car or truck. I own 2 old BMW 750iL 12 cylinder sedans. I'm talking 25 and 28 years old. They both have been in storage for about 6 years. One of them had a broken fan belt which I called Mobile Mechanic to send some one to replace it. The person they sent was Adam. Adam was on time for our appointment. He called the day before to introduce himself and disgusted with me the work to be done. Upon his arrival the day of our appointment, he was very polite when he introduced himself to me. He then went to examine my car and what needed to be done in my presents. After his examination he informed me that my water pump may had seized up and it was what was causing the belt to break. He suggested there also may be other things wrong such as the fan clutch that is attached to the water pump may also be froze up. He suggested that I not put the belt on but take it to a garage for further examination. We agree to this and he left without charging me anything. What an honest guy. I did take his advise and the next day had the car at the garage and they found that Adam was right. Both fan clutch and water pump froze up and that is what caused the belt to break. Adam not only saved me the cost of replacing another fan belt which would have broken if he replaced it but also the possibility of getting stuck on the road when the new belt would have broken because of the other 2 problems. Adam was honest enough to inform me of the possible additional problems even at the cost of him not getting the original job he was sent to do. When I get the other car out of storage it is my intent to call Adam to check it out and let me know what needs to be done.

Miguel

35 years of experience
258 reviews
Miguel
35 years of experience
BMW 750iL V12-5.0L - Oil Change - Miami, Florida
Third time I use Miguels services. As always he did an excellent job. Would recommend him to anyone.

Excellent Rating

(11)

Rating Summary
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Number of BMW 750iL services completed
121+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

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