BMW X3 diesel 56 plate

[JohnnyP40]

My engine management light come on today and the car went into safe mode. It will not go above 2-3000 revs.
I have just topped up the oil which was very low and now the engine management light has gone off but it is still driving in safe mode with limited power.
Any ideas would be appreciated . Thanks

[BFleming]

JohnnyP40 said:

My engine management light come on today and the car went into safe mode. It will not go above 2-3000 revs.
I have just topped up the oil which was very low and now the engine management light has gone off but it is still driving in safe mode with limited power.
Any ideas would be appreciated . Thanks

Get your codes read. Anything else is speculation.

[JohnnyP40]

Is that where a mechanic plugs it into a computer?

[Mr Tidy]

Yes, or you can buy a code reader online for about £40 and look at them yourself.

I bought one last year, but of course both cars have behaved impeccably ever since.

[JohnnyP40]

I’ve had a mobile Diesel engine specialist check my car and do diagnostics. He said my EPF has been previously removed and that’s causing the problem. He remapped my car but that did not help. At a cost of £200. He then said it’s the mass air flow meter that needs replacing which he tried but again this didn’t work. He then blocked off the EGR but still no difference???
No charge for parts as they were returned but another £60 labour cost and no further forward. They have now taken my car into to their garage to investigate further. They have been working on it over the course of 4 days but we are still in the same position.
Does anyone have any suggestions please anything at all may help thanks

Edited by JohnnyP40 on Tuesday 25th June 17:09

[JohnnyP40]

JohnnyP40 said:

I’ve had a mobile Diesel engine specialist check my car and do diagnostics. He said my DPF has been previously removed and that’s causing the problem. He remapped my car but that did not help. At a cost of £200. He then said it’s the mass air flow meter that needs replacing which he tried but again this didn’t work. He then blocked off the EGR but still no difference???
No charge for parts as they were returned but another £60 labour cost and no further forward. They have now taken my car into to their garage to investigate further. They have been working on it over the course of 4 days but we are still in the same position.
Does anyone have any suggestions please anything at all may help thanks

Edited by JohnnyP40 on Tuesday 25th June 17:09

[BFleming]

There's a reason no-one has posted - there's too many variables here. Removed DPF, blanked EGR and remapped (but apparently not very well or too late), all done to lord-knows-what standard. I suggest putting everything back to stock.
BMW DPFs are generally trouble-free if maintained. The main problem in my experience is that there are a few fault codes that prevent a DPF from regenerating if all other conditions are met (temperature, fuel level & RPM's). Some faults won't trigger a warning light, so people say 'oh no, my troublesome DPF is full', which of course it is as it hasn't been able to regenerate, they have it removed and coded out (by a confident 'expert' with a nice web page) but that's rarely the end of it.

[JohnnyP40]

Thanks for the info are you saying my better option is to get another DPF fitted?
Should I ask the same company who have remapped my car to put it back to its original form?

[BFleming]

JohnnyP40 said:

Thanks for the info are you saying my better option is to get another DPF fitted?
Should I ask the same company who have remapped my car to put it back to its original form?

Both (in my opinion), preferably at the same time.

[BFleming]

JohnnyP40 said:

Thanks for the info are you saying my better option is to get another DPF fitted?
Should I ask the same company who have remapped my car to put it back to its original form?

Both (in my opinion), preferably at the same time.