Hi all,
I am after a bit of guidance here, I have a MK2 Leon with a PD140 (BKD) engine. I recently started to intermittent niggles.
Last week whilst driving to work all of the warning lights lit up on the dash for about 3 seconds then vanished, I plugged in a fault code reader.... nothing.
Later last week after work I pulled up outside my house and the car was idling at around 1200rpm which is not normal for this engine, after switching it off and back on it had returned to normal.
This morning was the strangest, I parked the car at work and noticed that the engine was again idling at 1200rpm, I also noticed that on the digital display in the centre dash for the internal fan speed was missing (the blocks along the bottom), the fan was still running, the display was still showing the temperature output and where the air was being distributed but I could not adjust the fan speed?
I revved up the engine to around 2500rpm and all the warning lights lit up on the dash for a split second then turned off?!?!?!
I revved the engine up a few more time no lights came on but every time the idle returned to around the 1200rpm area. I switched the engine off and back on and the engine idle returned to normal and the fan control became available again.



I am after a bit of guidance here, I have a MK2 Leon with a PD140 (BKD) engine. I recently started to intermittent niggles.
Last week whilst driving to work all of the warning lights lit up on the dash for about 3 seconds then vanished, I plugged in a fault code reader.... nothing.
Later last week after work I pulled up outside my house and the car was idling at around 1200rpm which is not normal for this engine, after switching it off and back on it had returned to normal.
This morning was the strangest, I parked the car at work and noticed that the engine was again idling at 1200rpm, I also noticed that on the digital display in the centre dash for the internal fan speed was missing (the blocks along the bottom), the fan was still running, the display was still showing the temperature output and where the air was being distributed but I could not adjust the fan speed?
I revved up the engine to around 2500rpm and all the warning lights lit up on the dash for a split second then turned off?!?!?!
I revved the engine up a few more time no lights came on but every time the idle returned to around the 1200rpm area. I switched the engine off and back on and the engine idle returned to normal and the fan control became available again.