Mercedes-Benz B-Class Electric Drive Recalled For Stalling Risk Linked To Faulty Tesla-Supplied Software

2 years ago by Eric Loveday 19

2015 Mercedes-Benz B-Class Electric Drive

2015 Mercedes-Benz B-Class Electric Drive

The dreaded loss of power issue now affects the Mercedes-Benz B-Class Electric Drive too.

Mercedes has announced that it’s recalling 2,618 2014-2015 Mercedes-Benz B-Class Electric Drive vehicles due to the risk of stalling:

“Due to a communication error within the electric-drive system, the electric powertrain unit may shut down, temporarily immobilizing the vehicle and resulting in a loss of propulsion power. A vehicle stall increases the risk of a crash.”

The affected B-Class Electric Drives were built between November 21, 2013 and May 26, 2015.

B-Class Electric Drive Recall

B-Class Electric Drive Recall

Any of the affected cars that are on dealer lots cannot be sold as Mercedes has issued a stop-sale order on those cars.

To fix the problem, M-B dealers will update the vehicle’s software free of charge. The recall will begin in December.

Tesla Motors is listed as the supplier of the faulty part/software. A similar Tesla-related issue led to the recall of all Toyota RAV4 EVs ever built.

Tesla Motors Listed On Recall Acknowledgment

Tesla Motors Listed On Recall Acknowledgment

More details here

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19 responses to "Mercedes-Benz B-Class Electric Drive Recalled For Stalling Risk Linked To Faulty Tesla-Supplied Software"

  1. Nick says:

    No over the air updates for this model?

    1. scottf200 says:

      Apparently not. Hmmm… software could have some weird timing related corner cases … go figure. Perfect example of why OTA is beneficial.

    2. meh says:

      It’s a German company they do it the German way. That is, you have to get your car to some licensed mechanic who has licensed equipment developed by some other company (friend of mine works at one of those), that he links to your car and does the upgrade.

      Well I guess in the US it won’t be much different =)

  2. Taser54 says:

    This looks like Tesla’s MO -software is tested by the end user rather than their engineer- except that here Tesla cannot patch things over the air.

    1. notting says:

      In other words: banana principle


  3. Pushmi-Pullyu says:

    Ugh. Not a good month for Tesla!

  4. Sam EV says:

    Does this mean the Govt. forced them to recall this or is Mercedes voluntarily recalling it?

    1. Nix says:

      It means that MB is required by law to do a timely recall of unsafe vehicles themselves when a safety issue is discovered.

      MB has done this “voluntarily”, in that they are following the laws they are required to follow without the gov’t having to step in and force them to follow the law.

      The gov’t rarely has to actually step in and force car companies to issue recalls. Most recalls are done “voluntarily”.

  5. Alaa says:

    That is a shame!

  6. Koenigsegg says:

    every time i see this thing i wonder why they had to make it so ugly

    1. Big Solar says:

      It wouldn’t be a mercedes if it wasn’t ugly.

    2. Anon says:

      They spent very little money changing the look of the vehicle when it was converted to an EV. It looks like a factory conversion, much like the FFE.

    3. mr. M says:

      But rest assured, the B-Class was sold as ICE before they used the sandwich floor to make it a BEV. They don’t want to cut BEV sales, they simply made a practical insted of a stylish chassis.

  7. Speculawyer says:

    Conspiracy theorists will soon allege that Tesla did this intentionally to harm their competition.

    This does reflect badly on Tesla though . . . they need to get this fixed right away.

  8. Here is my post on this subject from July 15, 2015:

    The Mercedes B-Class ED may experience going into neutral and loss of propulsion power while driving.

    To help facilitate a possible future U.S. Government mandatory recall for the Tesla powered Mercedes Benz B-Class ED, make a report here if your car is subject to these conditions:

    You can also phone the Vehicle Safety Hotline: 1-888-327-4236 / Hearing Impaired (TTY): 1-800-424-9153) for assistance. Form Approved: OMB No. 2127-0008; Expires 05/31/2018

    You might mention in the report that this appears to be the same issue shared with the Tesla drivetrain in the 2012-2014 Toyota RAV4 EV “loss of speed sensor signal causes vehicle to go into neutral and lose propulsion power”.

  9. tm says:

    My car shut down on a busy interstate. When you lose power, the regen kicks in hard and essentially throws your car to a stop. I took my car in, they were gonna replace the ECU. After waiting 3 weeks, they cancelled the ECU order and just patch the software

  10. Phr3d says:

    and Thus endeth Tesla collaborating/providing EV componentry to competitors.

  11. Bill Howland says:

    I’ve repeatedly warned this “Stick to your knitting” issue will cause too much negativity toward Tesla. Its too bad they do not consider proper operation of previous sales a serious issue and give it the attention it deserves.

  12. Ian Morgan says:

    Not sure how this harms Tesla. I’m sure my Tesla had similar outdated software issues and glitches. The difference is Tesla doesn’t need a recall to fix it as updates are done over the air whilst the car is parked up at home. No need to go to a garage for updates.

    In the time IU’ve had my Tesl it has had about 5 over the air software updates, mainly to introduce new features to the car but I also expect a few glitch and bug fixes too!