SL/R231: TPMS warning
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From: Land of 10,000 lakes
AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
You can try to reset the tire pressure monitors in the instrument cluster settings but if the TPMS stopped reading it's likely a depleted battery. Since the battery is permanent, this means pulling off the wheel and tire and replace the TPMS. This is normal consumption and good life after 6 years.
You can buy these cheap online and have a tire shop do it or you can go to the dealer to have them do it.
Dealer will likely charge a couple hundred bucks for parts and labor (call first). The only benefit of using a dealer is the guarantee that the next sensor will work. They normally register automatically after a few minutes driving but I have had issues where the number had to be entered manually. That requires the proper software. Also if the TPMS is not good, they will swap it.
You can buy these cheap online and have a tire shop do it or you can go to the dealer to have them do it.
Dealer will likely charge a couple hundred bucks for parts and labor (call first). The only benefit of using a dealer is the guarantee that the next sensor will work. They normally register automatically after a few minutes driving but I have had issues where the number had to be entered manually. That requires the proper software. Also if the TPMS is not good, they will swap it.
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Joined: Dec 2014
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From: vero beach, FL
2014 SL 550
Update: I checked with the dealer and was quoted over $624 for the sensor, labor and taxes. Discretion being the better part of valor, I opted to give the local Firestone dealership a shot at it first. They did the entire job for $146.15. The new sensor is communicating fine with the system and we'll see if there are any glitches but looks good so far. Thanks for the tip Wolfman!
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Joined: May 2002
Posts: 10,556
Likes: 3,680
From: Land of 10,000 lakes
AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
Update: I checked with the dealer and was quoted over $624 for the sensor, labor and taxes. Discretion being the better part of valor, I opted to give the local Firestone dealership a shot at it first. They did the entire job for $146.15. The new sensor is communicating fine with the system and we'll see if there are any glitches but looks good so far. Thanks for the tip Wolfman!
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From: Brookshire, Texas & Cat Spring, Texas
2019 SL550/2023 EQS 580 SUV
But the sensor from Firestone won’t have the MB logo on it! 😊
I try as much as possible to deal with a local independent who specializes in BMW and MB rather than go to the dealer. Unfortunately he is getting near retirement age and after that I am screwed. He charges less and has a stellar reputation.
I try as much as possible to deal with a local independent who specializes in BMW and MB rather than go to the dealer. Unfortunately he is getting near retirement age and after that I am screwed. He charges less and has a stellar reputation.
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'17 SL450, '25 Lyriq, '25 Sonata Hybrid, '96 Corvette GS coupe
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From: Hagerstown MD
2015 SL400; 2019 X5M40i
Believe it or not I had a similar experience with my wife's 2009 RX. It had the original sensors so not surprising that they all started to fail about the same time. I called around and found out that Sam's Club does this type of work. I bought 4 new OEM sensors from Amazon and took them to Sam's Club. They replaced all 4 sensors, registered them and I was on my way for less than $100. This was over a year ago and all is well.
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From: vero beach, FL
2014 SL 550
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From: Land of 10,000 lakes
AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
Personally I would only buy a quality sensor used by Mercedes; they are about $60-80 a piece. After all, its power performance over many years is what you rely on. Cheaper isn't better but there is no need for a rip-off...
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From: Nothern Georgia, U.S.A.
'17 SL450, '25 Lyriq, '25 Sonata Hybrid, '96 Corvette GS coupe
I'd go with the Schrader, though I'm sure the others are probably fine as well...
