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

SRS Light on

 
Old 03-06-2015, 06:11 AM
  #26  
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SL350
Unhappy

Damn, spoke too soon fault reappeared yesterday
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Old 03-12-2015, 12:57 PM
  #27  
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If you are still monitoring this thread HSESL500MB I have been informed by
a local Indy that the fault is in the Electronic Ignition Switch (EIS).
Replacement of this unit is about 600 (GBP). This is a security item so
requires registration docs etc and is encoded to the car.
This they say will definitely fix this fault
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Old 03-12-2015, 05:43 PM
  #28  
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2007 E350; 2018 GLE350
I'll be returning my SL550 next week for follow-up service to correct the SRS problem. Getting a new key did not abate the problem ... the SRS warning, the roll-over bar yellow alert, and the loss of wipers reappeared. I will put the shop on notice that the EIS is the likely culprit and that it should be replaced. Many thanks to those of you who have participated in this thread; it has been most informative.
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Old 09-02-2015, 10:17 PM
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2005 SL 500
EIS

I am thankful for this thread, I was reluctant on having my Ignition switch changed until I read this thread. Many of you had the same problem I'm having with my SL 500 (2005) the noise, roll bar, SRS light and wind shield wipers not working. I have dealing with this problem for a year now because no one could find out what was going on until now and MB suggested I change the EIS but could tell me this would fix the problem. BTW before the suggestion MB changed Relay Key Starter and I purchased another key.

Wish me Luck & Thank you!
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Old 09-02-2015, 10:24 PM
  #30  
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2007 E350; 2018 GLE350
I'm betting the replacement EIS module will cure your problems. MB put a new EIS in my '07 SL550 in mid-March. All the problems you and I experienced--roll bar warning light, no wipers, etc.--disappeared immediately and have not returned. Good luck, Mate.
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Old 06-23-2016, 09:15 PM
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EIS Replacement Worked?

Hi,

I have the same problem with my 06 SL500. Is the consensus the EIS? Most of you have had it change since last year. Please let me know. Has anyone removed it and tried to repair it? Does anyone have a DIY for removal?

Thank you very much!!
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Old 06-23-2016, 09:17 PM
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Originally Posted by Quell View Post
I am thankful for this thread, I was reluctant on having my Ignition switch changed until I read this thread. Many of you had the same problem I'm having with my SL 500 (2005) the noise, roll bar, SRS light and wind shield wipers not working. I have dealing with this problem for a year now because no one could find out what was going on until now and MB suggested I change the EIS but could tell me this would fix the problem. BTW before the suggestion MB changed Relay Key Starter and I purchased another key.

Wish me Luck & Thank you!
Did it work? Thank You.!
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Old 06-26-2016, 01:26 PM
  #33  
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Thanks to this important post I rarely use the key switch in my car. It has the keyless go option and I use it all the time now hoping this may save me from this replacement.
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Old 08-06-2016, 07:32 PM
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Hi,
I seem to have the same problem. So is the solution the Egnition switch? Thanks.
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Old 02-28-2019, 04:01 PM
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Smile A risk worth taking. It saved me hundreds of pounds.

Originally Posted by tgee View Post
Hi,
I seem to have the same problem. So is the solution the Egnition switch? Thanks.
Hello all,
I have had for some time all of the above symptoms on my 2007 SL 350 with SRS light, roll bar light, command system not working, clicking noises behind drivers seat and windscreen wipers not working. I am not recommending that you do what I did to rectify these faults but it worked for me with no further problems for 3 months now. My car was also not used much before I bought it and I believe damp was the cause of the fault on my Eis

Note....this is an overnight fix and you will need a hair dryer inside your car the next day. Yes...really ! Bear in mind you probably won't get the ignition key to turn at all to start the engine, so you will need an extension lead ready to power the hair dryer inside the car depending where the car is parked overnight.

1. Obtain a spray can of switch cleaner (also known as contact cleaner) .2. Gently depress the aperture of the ignition switch (not using the key). ( The red lens area which mates with the key).
3. Liberally spray switch cleaner inside the ignition switch/ Eis for about Four to five seconds.
4. Clean any switch cleaner off the red lens and leave car over night.
5. Don't panic the next morning if your key won't turn to start car.
6. With hair dryer working, gently depress lens of ignition in and spend five minutes making sure that the hot air is going into the ignition switch,and make sure the hair dryer does not burn any plastic parts.
7. Insert ignition key and start the car.

i admit that what I did was risky to say the least and it was the "last chance saloon" before i spent out big bucks, but it has totally cured the annoying srs problems which would have cost me hundreds of pounds to fix.
Note. This fix is only related to the posts above regarding to the srs faults as described in the related posts.

Last edited by Spudface; 03-03-2019 at 09:09 AM. Reason: tidy up broken text, thank you.
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