battery

  1. M

    Shouldn't a pulse repair battery charger improve CCA?

    I have 2 old batteries 60Ah and 100Ah. The battery analyser shows they are 70% and 50% efficient respectively. I charged them then used a pulse repair battery charger on each battery. 8 hours on first day, then 12 hours on each of the following 2 days. The CCA of either battery did not improve...
  2. S

    E300e 2021 Battery Problems

    Hello everyone, Recently purchased the new E300e Hybrid. This morning when I tried to charge my car the following errors came up and I can't charge it. Also, before these errors came up, every morning when I would start the car there would be a weird vibration coming from the engine that I...
  3. A

    Mercedes Benz c class 350e - Malfunction in red color

    Mercedes benz c class 350 e 2016 model is not starting - it has malfunction with battery symbol and towing not permitted … Its been only couple of months I got the vehicle from dealer
  4. P

    Battery Query

    Hi folks, Apologies if this question has been asked in the past.. But I have a 2013 C180 Coupe which I bought back in November 2020 and whilst cleaning it a few days ago I thought whilst I was in the engine bay I'd check the date stamp on the negative battery post. Looking at the post it had...
  5. motocod

    W211 battery convenience functions while idling

    Hi folks, Bit of an odd one; I’m getting the “battery convenience functions” warning while I’m sat idling in traffic. It’s happened twice now, and clears within a few minutes once back up to normal driving speeds. Two questions: 1. Is this relating to the little aux battery under the bonnet...
  6. B

    Mercedes me connect: battery monitor – charge status critical

    Model : MERCEDES-BENZ GLC 300 4MATIC AMG LINE 5 door Estate Petrol Automatic 1991cc I have bought this car in Octiber 2020 as brand new from a Mercedes dealer. Within 30 days of purchase , the car started giving the warning "Mercedes me connect: battery monitor – charge status critical "...
  7. V

    C350 e hybrid 2016 battery range

    Hello everyone. I have just bought a used Mercedes-Benz c350 e plug-in hybrid. After being fully charged it shows range of 13-14 miles but while using it in the E mode the range quickly reduces and finishes in 4-5 miles or so. Is something wrong with my battery? Or someone else experiencing...
  8. JustinN

    Battery Conditioner - GLA45 AMG

    Hi All I'm looking to buy a battery charger / conditioner for my 2015 GLA45 AMG to keep the battery topped up and conditioned. I'm looking at the CTEK MX5 or MX7 but I'm unsure whether the MX7 is worth the price jump from the MX5. Anyone have any experience of them? Also, I know in my car I...
  9. S

    Indicators Problems

    I have been having problem with what I thought was the battery. I was told it is the battery, not realizing the car has two battery's. Problems CD going blank whilst driving comes back on after a second or two. Air conditioner doing the same. Gear stuck in first, everything is fine then bam...
  10. H

    Main or aux battery causing niggles?

    Hi I have a 2012 w204 c class. I have started getting more and more electrical issues that have started intermittent and now become permanent. 1. start/stop has not worked for a year or so 2. Automatic door unlocking no longer works, the doors lock when I start driving but do not unlock when I...
  11. C

    Voltage/Amps causing ABS/ESP fault but only during first minute of starting

    This happened every day for a week, then nothing for 500 miles, now it came on again so I was determined to record it because it's always been so quick that I don't see the exact message. (occurs about 1:04) the A also drops too, not sure what should be normal. It drops to -50A when starting...
  12. A

    Starter Motor Problem

    The car doesn’t start occasionally. The battery was changed 2 weeks ago, everything was working perfectly fine until the problem occurred again. You can hear specific noise while trying to start the car, additionally dashboard doesn’t light up while starting the car. Can it be the starter motor...
  13. S

    Rear consumer battery dying overnight

    Hi everyone! Car: 2005 SL500 75K miles. Prerequistes: Excellent condition. Recently, 'Consumer' battery dies overnight. CTEK Mercedes charger only gets to 3 lights overnight. Battery is tested good and 1 year old. Front seats have sealed vacuum lines and DO NOT cause PSE pump to constantly...
  14. D

    Deposit paid but furry auxiliary battery

    Hi, I need some non-jargon help! I have just put a deposit down on a 2011 a class a160 even though I spied fur on one of the auxiliary battery’s terminals. When I test drove the car the start/stop didn’t function but since then the car has been taken for a drive, the batteries both checked...
  15. idlerider

    Battery charging

    I've read that a battery charger can be fitted permanently to the car and just needs plugging-in put the vehicle on charge. I'd like to use a portable 5 amp charger on my s211 wagon, which is continually losing charge due to lack of use, but the charger instructions insist that the battery must...
  16. Janchee

    W213 Window Bug appeared for the first time

    All, Hope you're doing well during these times and the house is looking lovely and painted ;) Jumped in the car yesterday to go get some shopping. Popped the driver window down a little bit ... then clicked the switch for it go back up ... and it came back down half-way. Everytime. -_- When I...
  17. T

    Flat Battery, can't open vehicle

    Hi, Just returned today from 6 weeks away, and went to start car, but battery is completely flat. Key, and spare, both indicate that they are sending signals, but doors do not unlock. When I look through the window at the dashboard, I see that the clock has stopped. Tried the emergency (blade)...
  18. A

    battery disconnect

    I have to change washer /indicator stalk on my c class coupe 1.8 compressor 2003. So have to disconnect battery first . Will this create issues after reconnecting ?, ie computer settings etc
  19. S

    SL 350 battery light on dash - can anyone help??

    Battery light came on today and I’ve checked both batteries and they’re all okay, although rear battery alternator is charging but isn’t charging the front battery. I have checked F52 fuse in passenger footwell and that’s all okay. Any ideas how to fix this? Is there a fuse or relay that you...
  20. M

    Battery Drain with odd symptoms SLK 200 1.8 2006

    The alternator was 'leaking' and has been replaced. This reduced the drain to 1.7A when locked. Curiously, when unlocked, after 30s, the drain drops to 0.5A. But, after 20 minutes, it increases to 1.7A. The battery is good and even after 24 hours will just about start the car. The temporary drop...


Mercedes-Benz Servicing, repairs, engine and diagnostics
Wayne Gates - Mercedes-Benz, Unit F3, Phoenix Industrial Estate, Rosslyn Crescent, Harrow, Middlesex, HA1 2SP
Tel: 020 8863 9233
Established for 20 years all vehicles washed and vacuumed.
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