SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: TPMS SENSORS

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Old Dec 12, 2019 | 08:56 PM
  #1  
ray0214's Avatar
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From: Nashville Tn
2011 mercedes sl550, 1995 corvette
TPMS SENSORS

How long do mb tpms sensors typically last. And do replacements have to be OE mb or can aftermarket sensors be programmed to work?
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Old Dec 13, 2019 | 01:19 AM
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alk247's Avatar
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From: Kirkland, WA
2003 SL500
At least on 2003 no programming is required - there are four separate antennae, each communicating with only one sensor. Just make sure that sensors operate at correct frequency. I bought mine on e-bay.
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Old Dec 13, 2019 | 09:11 AM
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ray0214's Avatar
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From: Nashville Tn
2011 mercedes sl550, 1995 corvette
So how do you know what frequency they use?
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Old Dec 13, 2019 | 11:54 AM
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From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
Originally Posted by ray0214
How long do mb tpms sensors typically last.
I somehow have the notion they last about five years.

The operating frequency you need is 315 MHz. I bought
these these
a few months ago, but have not installed them.
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Old Dec 13, 2019 | 01:32 PM
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alk247's Avatar
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From: Kirkland, WA
2003 SL500
Originally Posted by bobterry99
I somehow have the notion they last about five years.

The operating frequency you need is 315 MHz. I bought these a few months ago, but have not installed them.
It appears that in in later years they switch to 475MHz.
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Old Dec 13, 2019 | 02:04 PM
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From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
Originally Posted by alk247
It appears that in in later years they switch to 475MHz.
I'm sure you are right, Alex. I had the notion the O.P. has an '03 car.
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Old Dec 23, 2019 | 05:31 PM
  #7  
ray0214's Avatar
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From: Nashville Tn
2011 mercedes sl550, 1995 corvette
My car is 2012, so I assume it’s 475mgh
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Old Dec 23, 2019 | 10:19 PM
  #8  
alk247's Avatar
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From: Kirkland, WA
2003 SL500
Originally Posted by ray0214
My car is 2012, so I assume it’s 475mgh
https://www.autohausaz.com/pn/150460...8aArq6EALw_wcB

Search internet for MBZ P/N or by description. This is reliable source, but not necessarily the cheapest.

P.S. It is 433 MHz. I was slightly off.
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Old Dec 24, 2019 | 10:19 AM
  #9  
funymuny's Avatar
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https://www.ebay.com/itm/Complete-Ge...8AAOSwJ69bgDh8

Reconditioned...presumably includes new batteries but I would confirm. My 11 SL has its original tpms sensors...still working. Discussed with my tire guy recently when I replaced all four tires. Just decided since originals are still working would simply leave them in...if one or more stops working I'll deal with it then. Not exactly a critical item (although the tpms dash error would annoy me. My wife's finally stopped working...error message never bothered her. It's an 08 CLK. A backup car now for our second home...love that CLK).
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Old Jan 6, 2020 | 12:25 AM
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DJErikD's Avatar
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From: Kaneohe, HI
2007 SL55 AMG
I just replaced my original MB TPMS sensors (date code 2006) when replacing tires. The original TPMS still reported good battery but I'm thinking the low mileage (60K) helped them last longer than their expected life. I put in new VDO Redi-Sensors with no problems.
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