Official 3.0 Diesel Engine Issues & Comments Thread

[omodos]

mine is a 2004 with 3.0d with 64000 km, had inner tire wear at rear not changed suspension parts as nobody can tell me for sure if that is a fix, also pixels on radio display console etc vanish in winter, ok in summer! mmm mystery coolant leak, fixed itself, aircon needed filling just recently for the first time,ahmmmm and the rear shunt jolt feeling due to auto gearbox issues seems to be common too, having said that it has been a lobng while since it has happened,,,,,,

[Fraser]

I have a 2005 3.0d with 70,000km. Brilliant so far except a very minor leak from a power steering hose. And it gets driven hard, most of the time on crap, rough as hell roads including gravel, dirt, mud etc. Still feels tight as a drum and goes like an express train.

[omodos]

hey fraser, is it a sport? is that your x5 in the profile pic?i need the higher profile tires and alloys soon, but not too sure how well it will do with the air suspension it has at rear, hmmmmmm

[Fraser]

No. Non-sport. That's a friend's car in the pic, me driving. Same as mine except I have the ten-spoke (130 style) 17s not the 5-spoke (57 style) 17s. I also have Pirelli Scorpion ATRs. Pic was taken with the OEM Michelins, would you believe!

[omodos]

I see, great

[powers1]

Originally Posted by JBF

Where would I even begin to start... Have had two new turbos in the last 12 months!

Hi´,
Could you enlighten us please!Maybe we can help!
We also have a member here that replaced 2 turbos and both times it was down to mechanics/dealer bloody incompetence and NOT an issue at all with the 3.0 X5 turbo Diesel

[powers1]

Originally Posted by balongbalong

Where do i even begin?

turbocharger failure, oil level sensor failure, oil separator failure, etc.

Come on ,its not that bad!
1.Turbocharger failure x4 in your case,is human error NOT a car issue .
2.Oil separator failure?What can fail with this ?Its a consumable item,in this case a paper filter,which will obviously block if you dont replace it or you use bad quality oils.
3.Oil sensor failure.Well ,I will admit that it did give me a false reading once but still there 7 years after,so no big deal.

[omodos]

I never trust the sensors anyhow, always before a long journey especially i check oil and coolant......

[rrgroup]

hi guys! i have a '03 3.0 diesel and i'm very happy with it until about a month ago. night time, while on my way to the city travelling at around 60mph, i heard a BEEP and computer showed FUEL INJECTION SYSTEM followed by the engine stalling. fuel gauge level was a little above a quarter tank. as per advice of BMW mechanics, i added some 5 liters of diesel but it still wouldn't start. on monday, computer diagnostics showed that it wasnt getting enough pressure from something in the fuel system. they checked everything and after 2 days, they told me that air probably went inside the fuel pump or something and that caused the stall. they released it to me and asked me to keep observing it especially when fuel level hits below half coz they're thinking that gauge or floaters might also be the culprits. i've had it 4 times almost empty tank and had no problem until 6 days ago. it cranks but just wouldnt start. now they tell me that its absolutely the primary fuel pump that needs to be replaced (part# 16126756157). it's a bit disappointing coz i feel they're not really sure. it's quite expensive so i would just like to hear any comments from you guys before i have it done. thank you and more BMW power!

[powers1]

Originally Posted by rrgroup

hi guys! i have a '03 3.0 diesel and i'm very happy with it until about a month ago. night time, while on my way to the city travelling at around 60mph, i heard a BEEP and computer showed FUEL INJECTION SYSTEM followed by the engine stalling. fuel gauge level was a little above a quarter tank. as per advice of BMW mechanics, i added some 5 liters of diesel but it still wouldn't start. on monday, computer diagnostics showed that it wasnt getting enough pressure from something in the fuel system. they checked everything and after 2 days, they told me that air probably went inside the fuel pump or something and that caused the stall. they released it to me and asked me to keep observing it especially when fuel level hits below half coz they're thinking that gauge or floaters might also be the culprits. i've had it 4 times almost empty tank and had no problem until 6 days ago. it cranks but just wouldnt start. now they tell me that its absolutely the primary fuel pump that needs to be replaced (part# 16126756157). it's a bit disappointing coz i feel they're not really sure. it's quite expensive so i would just like to hear any comments from you guys before i have it done. thank you and more BMW power!

You are right in thinking that they are not sure what they are doing.
Their first suspicion were the incorrect reading of gauges/floaters!Tell me something,when you filled up with 5 ltrs,did the gauge mark up?

Do you know what error code displayed in the diagnostics scan?FUEL INJECTION SYSTEM can be a number of things!If you say it was a low pressure issue in the rail,the first thing to be replaced would be your fuel filter and then the rail pressure sensor,which is a common fault on this engine!Only then should you check the rest of the fuel system like the injectors and the pump as the last resort as it is the most expensive.
Did they replace the fuel pressure sensor?
The injectors can easily be checked for resistance with a digimeter and this would eliminate the electrical side of them.Same with the pressure sensor.
Please have the wiring to the injectors checked as this sometimes comes loose due to heat...
This is about all that is Fuel injection related.

Was there anything done to your car just prior to you having this problem?Did you have you car re-mapped,for example?