Electrically dead Z3

[nickparker]

Asking for a friend.... he has a 98 2.8 litre Z3 soft top. Was working fine, has had a winter in storage and now won't turn over, no dash lights, no running lights. Anything requiring electricity is dead. Battery is 6 months old and has been checked and found to be fine. Any obvious checks recommended before getting a garage involved? Many thanks

 

[Woodsta888]

Hi,

How was the battery checked? How many volts is it showing? Should be +15v. Cranking amps may be too low left in it, but even then, you'd still get some lights on the dash. Checked the fuses?

 

[Zephyr]

Scan it with an obd. Most effective way to troubleshoot.

 

[nickparker]

Hi,

How was the battery checked? How many volts is it showing? Should be +15v. Cranking amps may be too low left in it, but even then, you'd still get some lights on the dash. Checked the fuses?

Thanks. Not yet. Is there a major fuse which could stop all electrics working?

 

[nickparker]

Scan it with an obd. Most effective way to troubleshoot.

Thanks. No OBD available and can't get it to a garage

 

[Zephyr]

Thanks. No OBD available and can't get it to a garage

Does the car have a remote lock/unlock remote?
If yes try unlocking the door with the key.
does it lock? (Both doors).
if it does, unlock it -two times- unlock once and repeat once again. (May unlock the ecu if it is “frozen”).
if the car doesnt lock (both doors) this is primary a battery issue.
please check again the battery, and try to charge it. Most of the times it is just the battery.

also, there is a plug in the front (under the hood/bonnet) a red one on the left side when you look the car from the front.
plug a positive cable there and a negative to the round screw on the wing/fender side. And check voltage from there.
if it is under 12ish try to send power from another car to these plugs and try again.

 

[t-tony]

Asking for a friend.... he has a 98 2.8 litre Z3 soft top. Was working fine, has had a winter in storage and now won't turn over, no dash lights, no running lights. Anything requiring electricity is dead. Battery is 6 months old and has been checked and found to be fine. Any obvious checks recommended before getting a garage involved? Many thanks

Where are you located? In case there is a member close enough to help. Have you tried with jump leads from a running vehicle?

Tony.

 

[nickparker]

Does the car have a remote lock/unlock remote?
If yes try unlocking the door with the key.
does it lock? (Both doors).
if it does, unlock it -two times- unlock once and repeat once again. (May unlock the ecu if it is “frozen”).
if the car doesnt lock (both doors) this is primary a battery issue.
please check again the battery, and try to charge it. Most of the times it is just the battery.

also, there is a plug in the front (under the hood/bonnet) a red one on the left side when you look the car from the front.
plug a positive cable there and a negative to the round screw on the wing/fender side. And check voltage from there.
if it is under 12ish try to send power from another car to these plugs and try again.

Will give that a whirl tomorrow, thanks

 

[nickparker]

Where are you located? In case there is a member close enough to help. Have you tried with jump leads from a running vehicle?

Tony.

In Cardiff. No haven't tried jump leads as the battery is sound and not even the interior light work

 

[nickparker]

Update... thanks for all your help guys. Locking/unlocking seemed to clear whatever the problem was and all electrics working again