DSM10000 Posted September 17 Share Posted September 17 2011 S-Class 350 Blue Efficiency. Occasionally fails to start. Remove the key, reinsert it, lock, and unlock. It commences after a duration of two. When it fails to start, the dashboard displays "Run Flat Unavailable" and the automobile skid sign is illuminated. Subsequently, it commences flawlessly. It may occur again today or in a few days. All readouts have been obtained, nevertheless the issue remains unclear. Express gratitude for any assistance received. Thank you, gentlemen. Quote Link to comment Share on other sites More sharing options...
DSM10000 Posted September 17 Author Share Posted September 17 I often need to separate and replace the negative battery connector; otherwise, the vehicle fails to start. Any suggestions? It has been in Lookers for six weeks. Quote Link to comment Share on other sites More sharing options...
bvlenci Posted September 17 Share Posted September 17 Do any codes appear when the vehicle is scanned? Quote Link to comment Share on other sites More sharing options...
MrGreedy Posted September 17 Share Posted September 17 You may further explore this extensive discussion on the other MB forum on a non-starting S-Class. Quote Link to comment Share on other sites More sharing options...
DSM10000 Posted September 17 Author Share Posted September 17 No, nothing; it remains in Lookers. Even when it fails to start, no error codes are present. Quote Link to comment Share on other sites More sharing options...
clk320x4 Posted September 17 Share Posted September 17 Did you encounter the same error while using both keys? The electronic ignition switch may lead to non-start or non-crank issues; alternatively, defects in the crankshaft position sensor and camshaft sensor might be responsible, although I would expect these to generate fault codes. Quote Link to comment Share on other sites More sharing options...
DSM10000 Posted September 17 Author Share Posted September 17 Indeed, I have tried both keys, and the issue persists with both. It is not displaying errors at Mercedes dealers.They are equally perplexed.Two months is an extended duration to endure this malfunction, however lately, its negative battery lead was reattached, and it begins immediately. Quote Link to comment Share on other sites More sharing options...
DSM10000 Posted September 17 Author Share Posted September 17 None , bvlenci Quote Link to comment Share on other sites More sharing options...
MrGreedy Posted September 17 Share Posted September 17 Have you reviewed that thread? Quote Link to comment Share on other sites More sharing options...
DSM10000 Posted September 17 Author Share Posted September 17 It has taken me the whole day; my head is aching. I will not be investing all that money in it. I like the vehicle; but, it fails to start 70% of the time. Run-flat and ESP notifications shown on the dashboard. When it begins, it is flawless. If the negative terminal is not toggled on and off, the device operates, and messages vanish. Inform me that you are acquainted with a gentleman. 🙂 Quote Link to comment Share on other sites More sharing options...
MrGreedy Posted September 17 Share Posted September 17 I concluded that the issue was the Terminal 87 Relay. I question if it incurs much expense, thus it may be prudent to begin with what the original poster saw as the answer. Quote Link to comment Share on other sites More sharing options...
DSM10000 Posted September 17 Author Share Posted September 17 I will get it on friday and attempt that, and I appreciate your work in assisting me.I really hope this is successful. Ksebs has also answered, indicating that I should do this initially as well. I will update you if it is successful.Salutations Quote Link to comment Share on other sites More sharing options...
MrGreedy Posted September 17 Share Posted September 17 Best of luck, my friend; it seems to be a harrowing experience! Quote Link to comment Share on other sites More sharing options...
DSM10000 Posted September 17 Author Share Posted September 17 I extend my profound gratitude.The relay resolved the beginning issue, but generated many error signals in Diagnostics. Ran clumsily. Swirl flap device replaced.As pleasant as can be.The leaking O-ring coated the device with oil, causing a short circuit and damaging the relay.I brought it home last night, and the audio stopped functioning, while the vehicle operates beautifully.Extremely pleased Thank you, gentlemen. Quote Link to comment Share on other sites More sharing options...
DSM10000 Posted September 17 Author Share Posted September 17 Particularly, gratitude is extended to KSEBS. Quote Link to comment Share on other sites More sharing options...
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