peakroach Posted Thursday at 02:17 PM Share Posted Thursday at 02:17 PM Yours really is a 2016 W205 C 250 BlueTEC My vehicle is experiencing ESP failures (which are more prevalent) and collision prevention assist problems (which are less common) on an intermittent basis. As soon as I turn the engine back on, they vanish, and it may be another two or three hundred miles before I see them again. When the screen alternates between green and yellow, it seems that the Stop/Start is acting erratically, which appears to be related to the Collision Prevention Assist issues. Might there be a problem with the voltage regulator or stabiliser? I can't find any indication that it has ever been modified, and I've had the vehicle for around four years without making any changes. Quote Link to comment Share on other sites More sharing options...
Black_raven Posted Thursday at 02:17 PM Share Posted Thursday at 02:17 PM Your description is correct; random problems like this may be caused by a deteriorating batter. It is likely time to change the battery if it is the original one. Quote Link to comment Share on other sites More sharing options...
peakroach Posted Thursday at 02:18 PM Author Share Posted Thursday at 02:18 PM I appreciate it; I swapped out the old battery with an aftermarket 115 Rombat AGM Start/Stop around two years ago. English CCA 800 Current (ah) 120 volts Is it possible that the battery is of low quality? Quote Link to comment Share on other sites More sharing options...
VVC-Geeza Posted Thursday at 02:18 PM Share Posted Thursday at 02:18 PM You should get real batteries. Connecting it to a Xentry machine will allow for an accurate diagnosis, eliminating the need for guessing. Quote Link to comment Share on other sites More sharing options...
peakroach Posted Thursday at 02:18 PM Author Share Posted Thursday at 02:18 PM I appreciate it, I am in Alton, which isn't far from you, but I can't private message you since I'm new. Could you please provide me with a quote so I may review it? Quote Link to comment Share on other sites More sharing options...
rab60bit88 Posted Thursday at 02:19 PM Share Posted Thursday at 02:19 PM Sure, it's certainly doable. Does anybody happen to know who can check the battery? Quote Link to comment Share on other sites More sharing options...
Starcar2022 Posted Thursday at 02:19 PM Share Posted Thursday at 02:19 PM Put it in charge for a day and see its performance. 👍 The stop-start auxiliary capacitor pack can be in your possession as well. Behind the shifter Quote Link to comment Share on other sites More sharing options...
rab60bit88 Posted Thursday at 02:20 PM Share Posted Thursday at 02:20 PM Can you get messages? I'm not sure. Reach out to him via his business. Quote Link to comment Share on other sites More sharing options...
rab60bit88 Posted Thursday at 02:20 PM Share Posted Thursday at 02:20 PM https://www.prestigecarservice.co.uk/ Quote Link to comment Share on other sites More sharing options...
VVC-Geeza Posted Thursday at 02:20 PM Share Posted Thursday at 02:20 PM The plug-in costs £60. After the first plug-in, any further work will cost £95 per hour + VAT. Quote Link to comment Share on other sites More sharing options...
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