Check Engine code U1118???

Salut les gars,

Pour la première fois depuis que je possède ma M3, j'ai eu un voyant de contrôle du moteur qui est venu dimanche soir. Il faisait très froid ici à Ottawa, au Canada (-35F).

La voiture était rugueuse et j'ai scanné le code le lendemain matin et c'était U1118 !! D'après mes recherches, c'est quelque chose entre le signal d'un ordinateur à l'autre ou quelque chose comme ça. Est-ce que ça peut aussi être autre chose ???

Il faisait beau toute la journée lundi et hier soir, je suis allé démarrer la voiture après le travail et le code a continué à nouveau, et oui c'était toujours le U1118.

Je cherche à voir si certains d'entre vous ont déjà vécu cela avant et quel a été le résultat???

Merci
Mike

tes-vous toujours sur la batterie d'origine? Il est peut-être temps d'échanger. Essayez cependant de le mettre en pièces avec un chargeur à filet avant de le remplacer. Difficile de diagnostiquer les gremlins électriques Désolé, je ne peux pas vous aider davantage.

-35°F that's "-37° Celsius" ... Holy 5H1T !
Mike ,your balls must freezing off out there...So personal I think your battery has a hard time to keep up !
So as stated above just connect a good battery tender and let it sit overnight ...

Amirsm3 wrote

Are you on the original factory battery still? It might be time to swap. Try charing it with a trickle charger before you replace it, though. It's hard to diagnose electrical gremlins Sorry I can't be of more help.

Yes car is still under the original battery !! Car has 70k so ill see if i still have the same issue when temperature gets a little warmer !! Thanks for the help

///M Power-Belgium wrote

-35°F that's "-37° Celsius" ... Holy 5H1T !
Mike ,your balls must freezing off out there...So personal I think your battery has a hard time to keep up !
So as stated above just connect a good battery tender and let it sit overnight ...

Yes its a damn rough winter this year for us !! It was -40c past saturday night !!! Both previous owners of the car had heated garage so i guess its something new for my baby to deal with cold temperature like this haha

An ///M without a garage? I'm surprised BMW hasn't come and taken it back! Good luck with your issues and (attempt to) stay warm.

Code U1118 came back on about 3 times since ive made this post... car always starts fine do i really need to buy another battery?

MikeeM3 wrote

Code U1118 came back on about 3 times since ive made this post... car always starts fine do i really need to buy another battery?

i'ts just a battery, change it before it leaves you stranded somewhere.

Patrón wrote

i'ts just a battery, change it before it leaves you stranded somewhere.

+1

My E90 (323i, my winter beater) had some issues due to extreme cold. Rear window defroster & heater stopped working due to weak battery. Is battery covered under warranty?

MikeeM3 wrote  

Code U1118 came back on about 3 times since ive made this post... car always starts fine do i really need to buy another battery?

I'd suggest leaving the car on a battery tender before you decide to shell out the cash to replace it. Also if you take your car to a BMW dealership or a certified BMW garage, you can have them scan your battery to see how it's life and performance is doing. Way better options than replacing the battery if It isn't needed.

buy a battery tender from Canadian Tire. It's about $40, a lot cheaper than a new battery. I live in Alberta where it's constantly -40 throughout the winter which can be 6 months long at a time. I always have my m3 hooked up to Battery tender. No problem yet!

Hello MikeeM3

I also just got on my 2011 M3 coupe E92 check engine light code U1118 and code U1118P it's cold here in Washington DC also

Just want to know if you was able to resolve the error code U1118 on your M3, I read some people say it's a battery replacement, just want know before I spend $400.00 on a new battery.

Thanks

Check Engine code U1118???
I replace the battery 90Ah 900 C Crank, No more error codes on the 2011 BMW M3 coupe, any one that get's the error message just replace the battery

Battery

When I had a BMW motorcycle they recommend that you put it on a battery tender when you're not riding it so the battery charges fully. I've done that will all my cars and I haven't had to replace the battery in any of them, and my M has had the same battery for 5 years. Just keep them charged up whenever possible, it will extend the life of the battery.

J'ai récemment changé ma batterie et en ce moment j'ai le code U1118 mais la voiture démarre bien, est-ce que ce code n'est pas sûr de l'utiliser? Qu'est-ce que cela signifie et comment puis-je le réparer aussi j'ai la lumière d'émissions accrues trop