- 4 December 2017 at 6:23 am #124694Philip FosterGuest
I have a 2005 Mazda 6 2.0-litre petrol. I disconnected the battery on Saturday and since reconnecting it the car stalls when I come to a stop. Up until disconnecting the battery, it was running fine no problems at all.
When I first started the car it seems to be leggy the revs are lower than normal around 500 – 600 but seems to set off fine. While the car has been moving for a while and is up to temperature is when the issue start. I slow down for a junction and come to a stop and press the clutch the engine stalls. Will restart no problem but I have to accelerate pretty heavy to get going sometimes causing wheels to spin.
Any help will be very appreciated
- 4 December 2017 at 5:54 pm #124761Stuart MassonKeymaster
Hi Philip. Modern cars can go haywire if you disconnect the battery, or if the battery goes flat. I was working for a Bentley dealership when the first Continental GT was launched in the early 2000s. The battery on our demonstrator went flat in the showroom and the car was never right afterwards – despite lengthy investigations and replacing almost every electrical system on the car at great cost to the dealership and Bentley.
Usually, there will be a particular process for disconnecting the battery to make sure that the car is properly shut down before power is removed – in the same way that yanking the power cord out of your computer can cause the operating system to corrupt or cause problems.
A Mazda dealer may be able to resolve it fairly easily with a system update or something similar.
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