Official 3.0 Diesel Engine Issues & Comments Thread

[RobX5]

[quote=RichardPB]I have done 34k from new (now 2 years old) and I still have 2 green service bars (brake fluid square is up so that will need doing but was waiting to have it done with oil service). I am due to take the car to Europe and will do 2.0k or so in 10 days. Should I wait for bars to disappear before servicing, when can I expect the next service to be due (lights to go out) this will only be its 2nd ever service so what’s involved?

Thansk

Richard[/quote

I would definetly do the service before going to Europe. I had the same dilema in june- went through the whole Europe without any probs, but did the service beforehand despite it was not due yet by one green bar. From what I've been explained by the mechanic- the car calculates the time for service on the basis of 4 factors, but I don't remember which. Whatever they are, the last thing you want is your car starting showing you the service messages or anything like 'please contact the service', when you are in the middle of another country. Besides some funny insurance companies in UK will not cover your break down on German motorways even if you purchase such cover, they will only pay for towing from the end of the motorway to the garage up to certain amount in euros and for towing on motorway you would have to pay yourself. Just another reason for having service before such a long trip.
Rob

[blueagle]

Thanks for the help guys. Let's make this thread as active as possible.

[thto]

Hi All

I am having some intermittent starting problems with my diesel x5.
Starts on the button every morning rain or shine, or whenever has not run for several hours.

At other times it can be problematic, sometimes taking 5-10 minutes to start after cranking every minute or so.

when driving, it is sweet and no lumpy idling.


I purchased a peake code reader and for those familiar with them, this is what I found.

From 'fc' (fault check mode) press 'go' and reader shows '52' then 'c' then 'ie' then '25' then returns to '--' (which I believe means no more codes found).

I understand this to be a code of ie25.

I cannot find this code anywhere in the accompanying peake booklet, do I need to convert it?

I suspect the starting issue is heat related on a resistor type / sensor item as when cold the car starts like a dream. Only when warm and used several times in the day do I get the problem.

Anyone help?

Thanks

[KamilFKH]

Originally Posted by thto

Hi All

I am having some intermittent starting problems with my diesel x5.
Starts on the button every morning rain or shine, or whenever has not run for several hours.

At other times it can be problematic, sometimes taking 5-10 minutes to start after cranking every minute or so.

when driving, it is sweet and no lumpy idling.


I purchased a peake code reader and for those familiar with them, this is what I found.

From 'fc' (fault check mode) press 'go' and reader shows '52' then 'c' then 'ie' then '25' then returns to '--' (which I believe means no more codes found).

I understand this to be a code of ie25.

I cannot find this code anywhere in the accompanying peake booklet, do I need to convert it?

I suspect the starting issue is heat related on a resistor type / sensor item as when cold the car starts like a dream. Only when warm and used several times in the day do I get the problem.

Anyone help?

Thanks

Hi,
The problem with quick finding what is problem is with the codereader fault code interpretation. If You use another tool (e.g. some OBD2 scanner with larger display or PC connected) You would find that the code is not ie25 but 1E25 and then after a short Inet search You would find it means "Überwachung Drehzahlgeber/Cam Shaft position sensor". I had the same issue on my 3.0D car from time I bought it but the problem (car won´t start) occured only when coolant temperature was exactly at the point when the gauge needle left the blue area. At first, without any diagnostic adapter, I thought it´s something to do with immobiliser that does not allow car to be started, but after reading all car´s fault memories I found this fault. About 82€ for the sensor solved the problem.

One more thing concerning to this 1E25 fault. If it is stored in Your DDE 4.0 fault memory, the DDE control unit falls into, let me say, "emergency" mode causing some parts of the engine to be switched off of operation:
-the turbocharger exhaust gas flaps are not operated
-the amount of fuel injected is limited to some value
-swirl flaps in mainfold are not operated and remain closed

and maybe some more restriction, for full list I should search WDS where the description is located. This all causes the engine to perform much worse with lower torque, lower max power, lower dynamic, higher fuel consumption all this causes poor performance of EGS (automatic gearbox control unit) shifting "few hundreds revs" later (e.g. at 4t instead of at 2,5t when trying to overtake etc.) I reckon that the overall performance of my 184HP M57 3.0D engine was limited to value somewhere around 100-120HP so It felt like You have a totally clogged air filter or pulled handbrake.

Do not forget to erase this fault from DDE for sure. I did it and then I thought I have a brand new car . Awesome power, huge torque. Of course I get used to it soon but the first impression from this change was very intense .

Cheers, Kamil

[PersonaNonGrata]

Come on all you 3.0d owners. Help your fellow oil burners out. This thread is here for you guys. Make it happen!

[PersonaNonGrata]

Is regularly scheduled maintenance for eligible X5's free of charge in the UK? If so, my dealer would not perform the free service until the green lights were off and the service indicator was alight. They were more than happy to do it at my expense though.

[Quicksilver]

Good question and yep your right "They are always more than happy to do it at my expense."

Originally Posted by PersonaNonGrata

Is regularly scheduled maintenance for eligible X5's free of charge in the UK? If so, my dealer would not perform the free service until the green lights were off and the service indicator was alight. They were more than happy to do it at my expense though.

[powers1]

OIL BREATHER SYSTEM

Parts no.s 11 to 15 on the link below

http://www.realoem.com/bmw/showparts...16&hg=11&fg=15


This is a crucial part of the engine that needs to be replaced periodically and is often overlooked and discarded by owners and dealers!
It is overlooked because of its built in location on the cylinder head!Unlike other common Oil Breather systems that have a hose from your Valve Cover to your Air Inlet pipe ,Bmws have a paper filter (oil separator) within a Capsule (breather) that has a channel .allowing filtration of oil back into your air inlet system.
This Filter(oil separator) has a tendency to clog up on higher mileage cars or cars with bad oils!I recommend changing this every 30,000 Kms .
The consequences of this clogging up completely are obvious!You engine cannot breath and it will blow out all the oil through the Dipstick,overheating and imminent engine seizure.
One occasion,one of my clients was lucky!His 3.0D was idling and stopped ,when I noticed loads of oil pouring out underneath the car!I opened the bonnet and the oil Dipstick was blown out and oil pouring out!We replaced the Breather system and car as new again..........

[blueagle]

My oil breather system was checked in the stealereship when I had my Inspection 2 sevice.

[blueagle]

Any recent problems for other X5 diesel owners ?