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    QC Charge: How to check for a motor coolant leak

    Pardon me if someone else has already posted this, but I think I came across it by myself. A company in California has a short YouTube video on how to check if your B-Class motor has leaking coolant seals: https://youtu.be/txD7u2DKanE There is also a mention somewhere of their selling new...
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    Feb. 2021 Retrospective article

    Nice article on a "forgotten" EV, our beloved B-Class: https://www.topgear.com/car-news/electric/forgotten-electric-cars-mercedes-b-class-electric-drive Lot's of info and kind words.
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    Latest news on the new EQB

    This article has some interesting info on the new EQB: https://electrek.co/2021/11/25/mercedes-benz-launches-eqb-electric-suv-price/ At $50,000, with a tax rebate reducing it further, this could be interesting.
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    Is replacing desiccant a DIY job?

    Has anyone replaced the desiccant in the battery pack at home? Is this a DIY job? I think maybe they remove the entire plastic pan under the car when they do it at the dealer. That would be a tough job at home. But I'm not sure about that, and maybe you could cut a few holes in the right spot...
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    A question for early Cabrio owners...

    I was driving my 2013 cabrio at night for the first time in a few months and I noticed that although the gear shift positions are illuminated, there is no light for the convertible top controls. Can someone with a pre-2017(?) cabrio take a look and tell me whether my lights are burned out, or...
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    Article about how new GLB250 should be an EV, like the B-Class

    Thoughtful article about how the new gas GLB250 could have been a revamp of the B-CLass Electric and been really attractive.... instead of the boring car it is: https://www.greencarreports.com/news/1129420_2020-mercedes-benz-glb250-drive-review-price-specs-photos-info It's always nice to...
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    Electrek article about Model B motor repairs

    This article https://electrek.co/2020/06/12/when-an-out-of-warranty-ev-fails-who-you-gonna-call/ in Electrek has a nice discussion of the fatal motor problems afflicting some Model B's. Tony Williams of "QC Charge" in California gives the best explanation I've seen of this problem. I believe...
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    Mercedes hints at B250e replacement

    You guys might find this interesting: https://www.greencarreports.com/news/1127245_mercedes-benz-eqa-compact-electric-car-arrives-later-this-year-in-production-form They see an electric EQA as a successor to our B Class electric model. I don't have a clear idea of what size the current A is.
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    Anybody know what an A-Class is?

    Here's a link to a 2010 article from Green Car Reports: https://www.greencarreports.com/news/1049380_mercedes-benz-a-class-e-cell-full-details-on-electric-hatchback-for-europe In it they talk about a small production run (400) of electric-powered A-Class vehicles. The photos look a lot like our...
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    What is the "driver assistance" graphic?

    Has anyone else stumbled across this display? I think it's called the "Driver Assistance" graphic. It never changes. Never. Does anyone have any knowledge of what this is supposed to do?
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    Is it safe to put the B on a lift for state inspection?

    Is it safe to have a car inspection place lift my car off the ground? I know Tesla is super-picky about how the car is lifted, but I couldn't find anything about the B. The lifts I see them use are two long parallel channels, the wheels hanging in front and back and the channel or pad pushing...
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    12mm tire wrench?

    When I had my tires replaced I looked at the lug bolts closely for the first time. They're like giant Allen wrench screws! I estimate 12mm across the inside. I have nothing like that in my toolbox. Has anyone purchased a tire wrench for their B? Any recommendations?
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    Extended Warranty from Mercedes-Benz

    I bought my 2014 B-Class in January 2019 with 22,000 miles on it. I was surprised to find that the original 4-year warranty had 4 months to run. After some early repairs and a little online research it seemed prudent to investigate getting an Extended Warranty. Here's what the dealer told me: -...
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    Coolant pump: "Without starting engine again..."

    The other day I got the dreaded "Without starting engine again, visit workshop" message, slong with severely decreased performance. Notice the crazy low E-Cell reading in the image. My best guess is that the car put itself in "limp home" mode when it detected a fault. There's a huge existing...
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    Tire recommendations? Cheap & quiet!

    Usually when I look for tire recommendations on a forum the discussion is dominated by folks who mount snow tires in the winter. Down here in North Carolina that's not a thing. It's about time to replace all four tires on my car. I've been studying tire seller websites and there are a ton of...
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    Electrical system overview

    I have been studying the Mercedes Benz service manual for the B-Class. I'm no mechanic, so a lot of it is over my head or uninteresting. But I thought this page would be useful to others. At the top is a diagram of all the major electrical components. And here's a link to the full page with...
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    Has anyone found an OBD2 reader that works?

    My car has just recently indicated that a "visit to the workshop" is in order. I imagine this is the Mercedes version of a check engine light. I tried two OBD2 adapters (wifi and bluetooth) and apps on both Android and iPhone. I also visited an auto parts store and they tried to connect. No...
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    "Take a drive to the future, and be home by tonight"

    I found this handsome B-Class sales brochure on E-Bay...http://robroy.dyndns.info/Images/B-Class/b-class-brochure.pdf Pardon the lightness of the text, but the original has very fine print. Key phrases: "Take a drive to the future, be home by tonight" "Driving that's emission-free shouldn't...
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    From the manual: Desiccant cartridge replacement

    Now that I have an electronic copy of the Mercedes manual, I am able to find some things I was curious about. At the top of my list was the mysterious "desiccant cartridge" which must be replaced every 10,000 miles or annually according to the manual. What is this thing? No other EV I know of...
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    Service Manuals

    When I went looking for a Mercedes service manual I was surprised to find nothing was available. I even emailed Haynes and asked, they replied: "There is not that much of a demand Mercedes manuals." Hmmm! EMANUALONLINE Download Finally I realized that several sources had an electronic manual...
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