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Yesterday i filled my (2017 e63s 50k km mileage) with 50L of gas and drove for 140km. Today i started my car with quarter of gas in the tank left and drove around the city for 20km until i stopped at the traffic light and flashing CEL popped up on the dashboard and car started to shake very badly and it did not drive normally anymore.
I drove my car to my work place parking lot what was close and parked it. 1 hour later i tried to turn the car on and did a little drive in the parking lot and the car did not shake anymore and only the CEL was on the dashboard but not flashing anymore.
Im gonna take it to the mercedes dealership parking lot in the evening and let them check it this week.
Does anyone have any idea what could the causes be so i could be more informed when i talk with the dealership.
If it happens again, turn the car off when safe and restart it - like at the next stoplight. That should take it out of limp mode.
If you don't have a code reader, they are a good investment and you don't have to pay big bucks - $50 to $70 will get you something that will read everything you're ever likely to want to see.
When the dealer looks at your car they should be able to see whether or not you have the firmware update that largely eliminates the CELs.
I had a problem with my car for a while and they ran a butt load of tests on it and swapped around injectors and plug packs and this and that under the direction of Mercedes in Germany. At the end of the day nothing was replaced but the problem was largely gone. Later they came up with the firmware update.
The general consensus was that it was a tolerance stack up issue where the emissions limits were set too light and the motor was tripping the CEL. Some noted the problem was more prevalent when the winter gas formulations hit the gas stations.
Its possible yes that it was winter gas cause winter just started here. Today I started the car and drove it a little and all was ok. Only the CEL was still on.
Thanks everyone for the suggestions. Im gonna talk with my workshop today.
is this what you guys refer to when you say CEL light?
yesterday I got on it a bit, light started to blink and motor started running rough. Shut it off, ran fine again but light stayed on. Just drove home from work and car ran fine til I got on it again, started to run rough, shut it off, runs normal again but light is still on. Taking it to a workshop on Monday to see what it might be but I’m a bit worried about it repeating itself …
Yes i have the same problem like you and everything happened exactly the same way. Too bad weekend came. Gonna get some answers next week. Gonna let you know what information i get
picked up the car last night after #6 being replaced, 'tested' it briefly after car warmed up and the issue continues. I imagine there must be another one failing. Back to the shop we go . . .
Put a reader on the obd, scan the code and see if it's still cyl 6... if it's another cylinder have them replace all coils in addition to their further diagnostics
Going to call tomorrow and see if they’re even open and if so, I’m headed over there first thing to have them hook up their computer again and see if I can find out who/what the culprit is.
Going to call tomorrow and see if they’re even open and if so, I’m headed over there first thing to have them hook up their computer again and see if I can find out who/what the culprit is.
took car to shop and had things looked over again after 2nd occurrence. Apparently #1, which apparently is on the other side of the block, now is in the process of failing after #6 has been replaced so I decided to have all 3 remaining ones replaced. In the shops defense, they did test drive it before returning it to me the first time around and it ran perfectly fine. In fact, I went for a quick drive with tech and tried to duplicate the behavior, of course nothing happened, car ran perfectly fine. Fuel supply was also tested and everything was as it should be so hopefully after remaining coils are replaced, things will return to normal . . .
got car back with now all coils replaced and had a chance to briefly accelerate on my way home to try to replicate the previous behavior but nothing unexpected happened except push me in the seat fairly hard. I'll have to do a couple more test runs but I'm optimistic that now she's all good . . .
I would scan the car with icarsoft or another good scanner in a couple days after driving it a bit for soft codes/dtc's that won't show up as CEL's
good luck
Yeah agree. You should run the car for a good bit in different conditions to make sure everything is good to go before you tune it because after you tune it if/ when you get another code, you want to make sure the car was working fine before the tune to help isolate the problem again
What mileage are in these cars that are showing bad coils? That we we can basically assume a range at which these could are good for
BMW basically replaces your coils (and plugs) around 20k miles for the Ms even before you get limp modes with the slightest change in vehicle behaviour
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