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Discussion summary
YOUR RESEARCHCTEK not charging ?
Leading reported evidence
Use car it had lost connection
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
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1
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Suggestion
I had a similar situation where I plugged in the CTEK via the ciggy lighter socket and all seemed fine but when I next came to use the car it had lost connection.
Leading evidence: 'Use car it had lost connection' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use car it had lost connection' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion
If so Im pretty sure it wont start to charge until about 9 volts, you need to use a charger to get some life into it
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Use car it had lost connection
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
I had a similar situation where I plugged in the CTEK via the ciggy lighter socket and all seemed fine but when I next came to use the car it had lost connection.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
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1 acknowledgements have no verified action link; they do not establish a repair result.
Hiya, I have a ctek mxs 5.0 plugged into ciggy lighter in my c2 with the LED indicator.
Odd situation : ctek is sitting at 7, but the led on the indicator flashes red. Shouldn't the charger tell me if it cannot charge the battery ?
I've had a similar situation in the past.
Try turning the bit that you plug into the cigarette lighter socket through 90 degrees so that it makes a better connection with the terminals hidden inside the body of the socket. It worked for me. Mine wasn't connecting, but fiddling around like this made it work.
However it was intermittent, so I now just connect to the battery terminals, it only takes a couple of minutes and the CTEK cable can be easily accommodated when you close the lid, so no interior frunk lights are on while charging.
Just remember to unplug the charger if its plugged in via the frunk.
I managed to reverse my car out of the garage and drive off down the road without disconnecting it :sad:
I had a similar situation where I plugged in the CTEK via the ciggy lighter socket and all seemed fine but when I next came to use the car it had lost connection. Switched to battery terminal charging via the frunk and all has been fine since. I put it down to a dodgy lighter socket, as it's also eaten a couple of FM transmitters over the years, but it may well have been as simple as needing to rotate the plug in the socket as Porschekit suggests.
When you its at 7, do you mean 7 volts? If so Im pretty sure it wont start to charge until about 9 volts, you need to use a charger to get some life into it
...my 996 is on the same charger and following several experiences of the ctek when connected for long periods apparently not charging I turn it off and on again about once per week...
Also on my R129 Mercedes I have driven out of the garage about three times with the charger connected ripping the socket of the wall in the process because the battery is in the boot...so get in start up pull away and crunch ! Follow by FFS!
No, I meant CTEK was sitting at level 7 out of 8 charging stages.
I've connected straight to battery and it seems to be charging now.
Bloody 12v sockets.
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