kjr640 said:

Hi All, any help really appreciated

I’ve been having battery drain issues so bought a multimeter and a car fuse tester.

Long story short charged up my battery and then checked all my fuses and also unplugged the battery… but now my car won’t start after putting everything back together.

This is a new issue and sounds different from when the battery was dead and we have different symptoms. It’s definitely not a dead battery because it’s showing 12.4volts and my car won’t start off a jump start either.

I turn my key twice and the fan under the bonnet is turning on (this has never happened like this before so I knew something was wrong). Then I turn my key to start my car and it’s not starting (it’s trying to start but not actually firing up) although the fan is on.

I can they’ll but think I’ve done something silly whilst working on the fuses (checked these all again and made sure battery terminals are tight).

Any ideas? It’s a 2003 L322.
Thanks

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Datatek said:

For a start, 12.4 volts is pretty low. I think you will need diagnostics. does the car lock and unlock from the FOB?

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Datatek said:

For a start, 12.4 volts is pretty low. I think you will need diagnostics. does the car lock and unlock from the FOB?

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norseman said:

Agreed.
Just out of interest did you get that voltage reading shortly after charging the battery or an hour or so later, as a freshly charged battery needs to 'settle' for at least an hour before you (can) take an accurate reading.

Either way, as Data says 12.4 isn't good from a charged battery, you should be looking at 12.8 upwards.

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kjr640 said:

I’ll take the reading in an hours time once the battery has settled.

My main concern is I’ve obviously fiddled with something accidentally today and now my car just cranks and can’t start and I’ve got no idea what’s caused this. Plus the fan turning on hasn’t happened like this before either. It’s a shame I can’t add a video on here.

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kjr640 said:

Not far off 12.4 or so after an hours wait (I know it’s not great and this is probably down to the parasitic battery drain that started all this!).

So I just tried to start my car again and no luck. I turn the key twice and the fan under the bonnet powers on and my car cranks but won’t start. Not sure but seems like I’ve done something to send the fan into overdrive whilst also causing my car not to start :0

Help needed and appreciated folks

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backinblack said:

What engine

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