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Aug 24th, 2023
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Joined: Oct 2007
Posts: 1,502
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Oct 2007
Posts: 1,502 |
If you have time and access to mains power, try a CTEK charger (a suitable model is 3600); this will save a completely discharged battery. Why has it gone flat? Mine can sit for months with just the immobiliser flashing - perhaps you have a clock or some other device like an extra alarm that is draining the battery? As advised above, cheap jump leads often don't work, and if you do use good leads, leave connected for 5-10 mins with "donor" engine running before trying to start.
The brakes will free off - often with a "bang" - when you move the car. Next time, park with the gearbox in gear, not with the handbrake.
If all fails, join the AA, wait a few days, and get them to recover you to the dealer!
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Joined: May 2009
Posts: 2,190
South Wales Correspondent Talk Morgan Expert
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South Wales Correspondent Talk Morgan Expert
Joined: May 2009
Posts: 2,190 |
If you have time and access to mains power, try a CTEK charger (a suitable model is 3600); this will save a completely discharged battery. Why has it gone flat? Mine can sit for months with just the immobiliser flashing - perhaps you have a clock or some other device like an extra alarm that is draining the battery? As advised above, cheap jump leads often don't work, and if you do use good leads, leave connected for 5-10 mins with "donor" engine running before trying to start.
The brakes will free off - often with a "bang" - when you move the car. Next time, park with the gearbox in gear, not with the handbrake.
If all fails, join the AA, wait a few days, and get them to recover you to the dealer! Sven, I agree with what Nigel says- and in terms of the sticking brakes, the Sport is not a heavy car. Try the simple way- get a couple of people to push it!. G
GLLHG
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Joined: Apr 2008
Posts: 11,868 Likes: 138
Scruffy Oik Member of the Inner Circle
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Scruffy Oik Member of the Inner Circle
Joined: Apr 2008
Posts: 11,868 Likes: 138 |
You have probably got insufficient voltage over the jump leads for the ECU to permit the engine to start cranking. The ECU is almost certainly waiting until it has 12.5 volts or so.
Best bet would be to remove the battery, charge it properly overnight, and replace it. THen you'll have full voltage and the ECU will have reset.
Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE
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Joined: Mar 2007
Posts: 2,321
Talk Morgan Expert
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Talk Morgan Expert
Joined: Mar 2007
Posts: 2,321 |
Don't know about ECUs on Morgans, but when jumpstarting a modern car take care because there are risks of ECU damage (apparently).
Thats true, sudden surge in voltage/current when you jumpstart the engine could damage the ECU. I was told the correct way to jump start a car is to switch on all accessories i.e. max.fan setting, main beams etc to take up the extra current to reduce the voltage surge when jump starting. And get a proper jump leads, one thats thick and soft, not the cheap oes you get from petrol stations.
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Joined: Sep 2009
Posts: 31
Just Getting Started
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OP
Just Getting Started
Joined: Sep 2009
Posts: 31 |
Thanks to all for your advice  I finally managed to 'unlook' the brakes by kicking against the tyres. Jump starting didn't work, so I towed the car to a Ford dealership which recharged the battery (ok - could have done that myself...) and read out 13 (!) errors  I picked the car up yesterday and wanted to enjoy over the weekend - now it's raining heavily with no change over the next days - ahrrr  cheers Sven
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