BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 5-Series (G30) Forum 2017+ BMW 5 Series (G30) General Discussions G30 530d def regeneration

Post Reply
 
Thread Tools Search this Thread
      01-20-2020, 10:51 AM   #1
Salop67
Registered
0
Rep
3
Posts

Drives: G30 530D SE
Join Date: Feb 2018
Location: England

iTrader: (0)

G30 530d def regeneration

Got a new 530 d which I am delighted with except for one thing.
I have just returned from a 100 mile round trip and on reaching home and turning off the engine the cooling fans were running and I could smell that a forced regeneration was going on.
My understanding is that the dpf cleans itself when running at high speed(motorway) and it is only when the dpf becomes blocked after a lot of short journeys that extra fuel is injected into the dpf and a forced regeneration occurs.
Why would the car start a forced regeneration towards the end of a lengthy and mostly fast(over 60 mph) journey?
I thought it would be useful to ask on here before a trip to the dealer. I guess they will tell me there is nothing wrong with it.
Appreciate 0
      01-20-2020, 12:16 PM   #2
HighlandPete
Lieutenant General
4010
Rep
12,134
Posts

Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

iTrader: (0)

Quote:
Originally Posted by Salop67 View Post
Got a new 530 d which I am delighted with except for one thing.
I have just returned from a 100 mile round trip and on reaching home and turning off the engine the cooling fans were running and I could smell that a forced regeneration was going on.
My understanding is that the dpf cleans itself when running at high speed(motorway) and it is only when the dpf becomes blocked after a lot of short journeys that extra fuel is injected into the dpf and a forced regeneration occurs.
Why would the car start a forced regeneration towards the end of a lengthy and mostly fast(over 60 mph) journey?
I thought it would be useful to ask on here before a trip to the dealer. I guess they will tell me there is nothing wrong with it.
Not sure how the latest DPF strategy is working in all conditions. Could simply be the EGU had decided the soot loading was too high and triggered an active regeneration.

I know when I had my 330d, I had that sort of thing happen. One occasion I'd driven over 100 miles, and about a mile before I got to my hotel, went into a regeneration. Knew it before I stopped, sure enough the exhaust was hot and giving off the evidence. Next day, once heated up, it continued the regeneration.

I thought at the time, why didn't it make a passive regeneration during the run? Conditions obviously weren't met, and it required an active regeneration.
Appreciate 0
      01-20-2020, 03:01 PM   #3
Johnny Grabble
Private First Class
40
Rep
198
Posts

Drives: 530d
Join Date: Dec 2013
Location: Cheshire UK

iTrader: (0)

Quote:
Originally Posted by Salop67 View Post
Got a new 530 d which I am delighted with except for one thing.
I have just returned from a 100 mile round trip and on reaching home and turning off the engine the cooling fans were running and I could smell that a forced regeneration was going on.
My understanding is that the dpf cleans itself when running at high speed(motorway) and it is only when the dpf becomes blocked after a lot of short journeys that extra fuel is injected into the dpf and a forced regeneration occurs.
Why would the car start a forced regeneration towards the end of a lengthy and mostly fast(over 60 mph) journey?
I thought it would be useful to ask on here before a trip to the dealer. I guess they will tell me there is nothing wrong with it.
My 530d does that sometimes, perhaps 1 motorway trip in 20 or 30 (none of my motorway trips are less than 60 miles). Also had it do it 12 miles after a cold start.
Appreciate 0
      01-22-2020, 10:24 AM   #4
Salop67
Registered
0
Rep
3
Posts

Drives: G30 530D SE
Join Date: Feb 2018
Location: England

iTrader: (0)

Thanks for the replies. It was a cold day and the engine is hardly working at 70 mph so it probably didn't get hot enough. I doubt if there is anything wrong with it so I will not bother the dealer.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 08:31 AM.




5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST