C30 General : - Intermittent loss of power

vol7voC30 · Jul 23rd, 2021, 12:34

I have a '08 C30 D5 auto which I love, however, it has a problem which I really want to sort out. If I start the engine, drive of and keep the throttle in up to 60 mph, the car goes great with full power. If I have to hover at about 40 mph, the next time I need to accelerate, the car goes into a kind of limp mode, it won't accelerate up a steep hill, it just revs in 3rd and turbo seems not to be spooling up properly and the kickdown is the same. If I stop, turn the engine off, it resets and is fine. this makes me think it is an electrical issue/sensor/ECU. I have seen a couple of posts about this, (it seems quite common) but nothing definite, does anyone know exactly what this problem is?

Brimfull · Jul 23rd, 2021, 12:45

Any codes??? if you have not looked at or had the codes read this would be the best place to start otherwise it could turn into a guessing as to what the problem is.

vol7voC30 · Jul 23rd, 2021, 17:19

Thanks. Will start there

Nice motor btw

Jul 23rd, 2021, 12:34	#1
vol7voC30 New Member Last Online: Jul 23rd, 2021 17:19 Join Date: Jul 2021 Location: Louth	Intermittent loss of power I have a '08 C30 D5 auto which I love, however, it has a problem which I really want to sort out. If I start the engine, drive of and keep the throttle in up to 60 mph, the car goes great with full power. If I have to hover at about 40 mph, the next time I need to accelerate, the car goes into a kind of limp mode, it won't accelerate up a steep hill, it just revs in 3rd and turbo seems not to be spooling up properly and the kickdown is the same. If I stop, turn the engine off, it resets and is fine. this makes me think it is an electrical issue/sensor/ECU. I have seen a couple of posts about this, (it seems quite common) but nothing definite, does anyone know exactly what this problem is?

Jul 23rd, 2021, 12:45	#2
Brimfull V50 R-Design SE T5 baby!! Last Online: Aug 4th, 2022 13:53 Join Date: Oct 2020 Location: Wrexham	Any codes??? if you have not looked at or had the codes read this would be the best place to start otherwise it could turn into a guessing as to what the problem is. __________________ V50 T5 R-Design SE Last edited by Brimfull; Jul 23rd, 2021 at 12:51.

Jul 23rd, 2021, 17:19	#3
vol7voC30 New Member Last Online: Jul 23rd, 2021 17:19 Join Date: Jul 2021 Location: Louth	Thanks. Will start there Nice motor btw

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