X3 G01 DPF question

[ITR1]

Hi, I'm thinking of buying one of these but really unsure whether or not I'm likely to run into issues if I went for a diesel. (Sorry - this question has probably been done to death, but I couldn't find much about this particular vehicle).
I drive around 10,000 miles a year - typically a 10 mile round trip to work (so 20 mins each way but not sat in traffic) 2 or 3 times a week and then a longer drive prob 1-2 hours at motorway speeds once a week. Then a 400 mile trip every 8 weeks.
So not high mileage.
The 2.0i seems poor economy and I've always fancied the 3.0d engine for the performance and economy. I don't think my budget will run to the x340i engine and the economy of that looks pretty bad.
Am I likely to run into dpf issues with that type of use? I had a 55 plate 320d which I ran from 45,000 miles to 100,000 miles with no problems. Do these newer diesel engines manager dpf issues better?
Thank you.

[CJ1]

It will be completely fine. Just needs a good run up the motorway every couple of weeks, new DPF’s are a lot more advanced nowadays especially the BMW diesels.

30d is a brilliant engine. If anything suits the X3 better than the M40i

[BFleming]

The Italian tune-up (blast up the motorway) is a slight generalisation. The official BMW line is that there are two kinds of regeneration:

Continuous regeneration:
This form of regeneration takes place during normal driving. At exhaust-gas temperatures of between 280-350°C, continuous regeneration takes place in the form of a slow oxidation process. The soot particles cannot be incinerated until the exhaust gases reach the required temperature.

Periodic regeneration:
Periodic regeneration is performed automatically by the DDE (Diesel engine ECU) after no later than 1000 km (600 miles). On vehicles with many short-distance drives, periodic regeneration already starts taking place after just 400 - 800 km (250 - 500 miles).

For regeneration, the intake air is reduced by the throttle valve. One or two post-injections are performed. This increases the exhaust-gas temperature to about 600 °C. The soot is incinerated with the residual oxygen.

The periodic regeneration is performed at all speeds. The most efficient method is regeneration at a constant speed in excess of 60 km/h (38 mph) over a period of 20-30 minutes.

The DDE calculates the time for periodic regeneration from the following values:

• average distance travelled
• average driving speed
• temperature in the diesel particle filter
• values from the exhaust gas pressure sensor

The last successful regeneration can be read out by the diagnosis system

The following conditions must be fulfilled for a regeneration:

• The coolant temperature must be in excess of 75 °C
• The exhaust-gas temperature before the diesel particle filter must be greater than 240 °C
• There must be enough fuel (fuel reserve indicator light is not lit up). Whenever the reserve lamp lights up, the regeneration process is suspended.
• No fault codes from the air mass system, exhaust emission system and sensors must be saved in the DDE
• The fault codes 480A / 245700 (from F01) and 481A / 245800 (from F01), if apparent, must display the status "currently not present"
• Constant driving speed above about 60 km/h (approx. 38 mph). The optimum speed is about 100 km/h (approx. 60 mph).

[ITR1]

V. helpful, thanks both.

[simkin911]

Have owned one since Oct 2018 - sadly due to lockdown have managed only 10k miles in that time - mostly due to the lockdown. Low miles, short journeys.

It’s been a great car. Needed a software update after a year but easily managed by the dealer.

The 30d is a great engine and pretty economical on much longer motorway trips. Very refined.

I’d recommend the heads up display - works nicely on the model. Also have the M sport package, lighting package and technology pack.

I’ve had no problems. Highly recommended.

[ITR1]

Thanks simkin