[v-spec]

So i am a proud recent owner of a 2008 118d m sport

Everything was going smoothly until the last few weeks on the odd occasion i suddenly lose power while the car is driving!?

The other day i was on the m25 motorway cruising at 75mph and suddenly the car stated to judder and the revs just went low and the car wouldn't accelerate, my speed dropped to under 25mph and i had to pull into the hard shoulder.

Now heres the funny part, i switched the ignition off and restarted the car, it was good as gold afterwards.

This has happened a few times now and haven't a clue why? all i have to do is switch the car off and restart and its back to normal.

I also had a remap done using the bluefin device from superchips (so a superchips map) i'm not disrespecting the car and ragging the [email protected] out of it, this is just normal driving when it happens.

any ideas or can someone point me in the right direction to get it sorted, its actually scary when i'm on the motor way and suddenly lose power and have to drag myself over into the hard shoulder!

Thanks.

 

[stevesurrey]

Has this only happened since the remap ?

 

[marco_polo]

I doubt it's connected to the Bluefin remap. I guess you could remove the map as it's so quick and easy to do.

Any error messages or warning lights?

Personally I would start by checking your reluctor rings on the rear hubs. Let us know if you see any bright shiny spots (witnesses of contact).

 

[v-spec]

If im honest I didn't have the standard map long enough, soon as I got the car I got the remap.

No warning lights at all, or engine light. I even attached the bluefin and used the diagnostic function but no error codes came up!

 

[marco_polo]

How are the rings?

 

[Jimmyrallye]

Dirt on abs sensors or the rings on back will be your problem

 

[v-spec]

I had to google what the rings look like and where to find them,

Went underneath the car and its bloody dirty, mud and dirt everywhere so can't see much.

Should I just jet wash it? Or go to my local garage get it on a ramp and clean it.

Thanks guys!

Was thinking to check the fuel filter and air filter aswell.

 

[Craig Senior]

I had something similar on my old 318d. Bmw Assistance thought it might be dirt in the fuel system but it had cleared by the time they turned up. Took it to the dealer & it turned out to be a sticking valve in the EGR assembly. Was replaced under warranty.

 

[v-spec]

ok so ill clean everything up, the abs sensors, rings. Get the EGR valve checked to see if its sticky and do the air filter and fuel filter.

Then hopefully this will stop the problem.

I'll let you know if its successful.

Thanks all.

 

[marco_polo]

Air and fuel filter aren't likely to cause intermittent power losses.

 

[v-spec]

Well from the info everyone gave me I did some searches on this forum and checked youtube out. Its might be the EGR valve or the reluctor rings.

Ive booked the car in to my local garage and asked them to check the abs sensor and rings.

The EGR valve I can take it off myself and check, if it needs cleaning then at least I can do this.

Process of elimination but both would seem to cause the issue I have.

Many thanks to all who replied.

 

[v-spec]

Lads so this evening I was driving my car and suddenly my warning lights came on and flashed, the dtc, abs, brake lights all came on, then a picture of a car flashed on.

After that its said service due.

I connected my bluefin and did a diagnostic

Got an error code of P1506, checked online and it says

Idle Speed Control Valve Open Solenoid Control Circuit Signal High

Eeerrrr nothing to do with the brakes.

 

[Mrwood91]

Hi,

Did you ever managed to get this sorted or what it was ?

I have a 118D M sport 2012 and I'm having the exact same issues. Driving along perfectly fine then all of a sudden the power and revs completely drop, I have to drop the clutch and try and rev it and hope it comes back to life. A few times I have not managed to get it done and had to limp to the side of the road and wait for it to fix itself.

I'm hating driving the car everyday because of the fear of when it could strike next so any help would be muchly appreciated.

Thank you

 

[HofmeisterKink]

Hi,

Did you ever managed to get this sorted or what it was ?

I have a 118D M sport 2012 and I'm having the exact same issues. Driving along perfectly fine then all of a sudden the power and revs completely drop, I have to drop the clutch and try and rev it and hope it comes back to life. A few times I have not managed to get it done and had to limp to the side of the road and wait for it to fix itself.

I'm hating driving the car everyday because of the fear of when it could strike next so any help would be muchly appreciated.

Thank you

Hi, I see OP didn't reply to you but did you find the problem with your car?

Thanks

Sent from my iPhone using Tapatalk

 

[AP1]

Ops problem will be the reluctor rings. It doesn't normally store a fault code. Bluefin also only reads engine codes.

 

[MJDof68]

Hi all, I am also in this category of loss of power at low revs on warm engine ( starting from cold, overnight) so slowing down at the first junction it happens!
2010, 118d auto. Once clear, then can proceed to motorway for my 35 mile commute at speed with no further problem!
This happens intermittently! and over the 2 years I've owned the car I've had the recall electric work done.
SO IS THERE A FIX?
Many thanks
Mick.