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

SL/R230: Odd issues with 2005 SL65 AMG

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Old Oct 16, 2022 | 12:26 PM
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CL600CK60V12's Avatar
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2008 S65 AMG, 2005 SL65 AMG, 2005 Porsche Carrera, 2011 Shelby GT500, 2001 Acura CL Type S
Odd issues with 2005 SL65 AMG

I have a very odd issue with my 2005 SL65 AMG. I also have a 2008 S65 AMG I have zero issues with

Here are the issues with SL:

- Car does not respond to a remote. When I use the key, open the door, start the car, let it run for a few minutes, shut it down. Car responds to a remote as it should (I can lock/unlock doors).
After 10 minutes, car does not respond to a remote
- I used a battery tester and got nowhere. Same battery tester works well with S65 (which uses the same starter battery). Since SL starts without issues, this must indicate that starter battery is ok (right?) but it makes no sense that I battery tester does not even power on when I connect it to the starter battery!

Starter battery is from 3/2021.

I also noticed that the 12V socket in the car does not work.

Yesterday, when I stopped at the red light, car shut itself off! I had to put in in park and start it again - it started immediately.

Can anyone recommend a good indie Mercedes mechanic in Saint Petersburg, Florida?


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Old Oct 16, 2022 | 03:04 PM
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I would guess the shutting off part may be a faulty crank sensor, that is what they do when they start going bad, until it won’t start when the engine is hot.
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Old Dec 24, 2022 | 10:21 PM
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From: Brooksville Florida
2005 Mercedes sl65 amg
Originally Posted by CL600CK60V12
I have a very odd issue with my 2005 SL65 AMG. I also have a 2008 S65 AMG I have zero issues with  Here are the issues with SL: - Car does not respond to a remote. When I use the key, open the door, start the car, let it run for a few minutes, shut it down. Car responds to a remote as it should (I can lock/unlock doors).After 10 minutes, car does not respond to a remote- I used a battery tester and got nowhere. Same battery tester works well with S65 (which uses the same starter battery). Since SL starts without issues, this must indicate that starter battery is ok (right?) but it makes no sense that I battery tester does not even power on when I connect it to the starter battery! Starter battery is from 3/2021. I also noticed that the 12V socket in the car does not work. Yesterday, when I stopped at the red light, car shut itself off! I had to put in in park and start it again - it started immediately. Can anyone recommend a good indie Mercedes mechanic in Saint Petersburg, Florida?
did you find some reliable mechanic in Saint Pete? I'm also looking and I'm little bit north from you.
​​​​​​​Thanks
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