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Noob D3 Questions...
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Jay_hagga



Joined: 05 Mar 2017
Posts: 18

PostPosted: Mon Mar 13, 2017 11:27 pm    Post subject: Noob D3 Questions... Reply with quote

Good evening peeps.. just had my first alpina. ...an e91 d3 No 181 and have a few questions. .. what size are front / rear discs? Looking to replace these soon. Can taxation class be changed from plg? Should I be getting better than 35mpg combined (stats replaced..no boost leaks etc).
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stephenjk



Joined: 12 Jun 2016
Posts: 9

PostPosted: Tue Mar 14, 2017 11:45 pm    Post subject: MPG Reply with quote

Welcome! I have early 2012 automatic D3 (post LCI E91) and normally get 40mpg combined. 45 MPG on motorway, 35 MPG in mainly town driving (base on trip computer). I dont have stop start on the automatic so I'd expect bit more if you have LCI manual.
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Jay_hagga



Joined: 05 Mar 2017
Posts: 18

PostPosted: Thu Mar 16, 2017 10:42 pm    Post subject: Reply with quote

I've changed the stats and now getting 42-46 combined..but about the same on a run..nowt like the stated 58 lol... wondering if my maf is acting up as low down torque is pants.. or is that just the characteristics of th d3...
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stephenjk



Joined: 12 Jun 2016
Posts: 9

PostPosted: Fri Mar 17, 2017 1:20 am    Post subject: Reply with quote

I find mine similar, i.e. slower than i expected at low revs when i put my foot down hard.
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Jay_hagga



Joined: 05 Mar 2017
Posts: 18

PostPosted: Sat Mar 18, 2017 1:07 am    Post subject: Reply with quote

Foot down after the lag is great...but still seems a lil underpowered at low revs but have no benchmark to compare...changed air filter today..What an arse that is lol... as for the tax..waiting on bmw to send info on co2 emissions info to pass on to dvla..should be able to get reclassified as band g instead of plg.
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Arvi
ALPI
ALPI


Joined: 23 Aug 2012
Posts: 385

PostPosted: Mon Mar 20, 2017 12:19 pm    Post subject: Reply with quote

Around town I regularly see 38+mpg. Motorway runs I can get 48-60mpg (60mpg in 50mph average camera zones). That on a 2006 D3 MT.
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Jay_hagga



Joined: 05 Mar 2017
Posts: 18

PostPosted: Mon Mar 20, 2017 9:31 pm    Post subject: Reply with quote

That's good...what I used to get from my old 320td. .I expect there's something a miss somewhere... I'll have a nosey the weekend.
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Jay_hagga



Joined: 05 Mar 2017
Posts: 18

PostPosted: Fri Mar 31, 2017 12:03 am    Post subject: Reply with quote

Going to check egr and map sensor at the weekend...maf appears ok.. (disconnected and drive was worse)...Though found that rear tyres are 35 profile not 30s so expect that not helping mpg readings either. ..no codes on dis/inpa..apart from 3 glow plugs Mad oh the joys lol..
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Jay_hagga



Joined: 05 Mar 2017
Posts: 18

PostPosted: Fri Mar 31, 2017 12:12 am    Post subject: Reply with quote

Another question (sorry Rolling Eyes ).. are the dpf on these same as standard 320d ?
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DonFlintoni
ALPINA
ALPINA


Joined: 14 Aug 2010
Posts: 758
Location: Bristol

PostPosted: Sun Jul 16, 2017 11:14 pm    Post subject: Reply with quote

Jay_hagga wrote:
Going to check egr and map sensor at the weekend...maf appears ok.. (disconnected and drive was worse)...Though found that rear tyres are 35 profile not 30s so expect that not helping mpg readings either. ..no codes on dis/inpa..apart from 3 glow plugs Mad oh the joys lol..


This is probably why your power and mpg are down. Running on 3 plug means your DPF wont self regenerate and you'll be progressively blocking up the DPF......
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Broch
ALPIN
ALPIN


Joined: 13 Aug 2007
Posts: 679
Location: Aberdeenshire

PostPosted: Mon Jul 17, 2017 1:18 am    Post subject: Reply with quote

Jay_hagga wrote:
...Though found that rear tyres are 35 profile not 30s so expect that not helping mpg readings either. .


The BT cars are 265/35's, but the MT's are definitely 265/30's

Onzie
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Jay_hagga



Joined: 05 Mar 2017
Posts: 18

PostPosted: Mon Jul 17, 2017 10:13 pm    Post subject: Reply with quote

Do i take it that it won't regen at all if there are glowplug issues? I've done 5-6k with no issues (fingers crossed ) . Looking at removing flaps soon so shall replace plugs then...and have pair of 30 profile rears to go on when tyre change due.
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Arvi
ALPI
ALPI


Joined: 23 Aug 2012
Posts: 385

PostPosted: Mon Jul 17, 2017 10:37 pm    Post subject: Reply with quote

Yes if glow plug or controller has gone you will not auto regen.
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Jay_hagga



Joined: 05 Mar 2017
Posts: 18

PostPosted: Mon Jul 17, 2017 10:49 pm    Post subject: Reply with quote

I'll recheck error codes at the weekend and plan accordingly ☺
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Paulb
ALPINA
ALPINA


Joined: 06 Jul 2013
Posts: 880
Location: United Kingdom

PostPosted: Mon Jul 17, 2017 11:23 pm    Post subject: Reply with quote

Sadly you'll never know the history of the car and when I say history, I'm referring to the fuel used.

Poor quality diesel used through it's history won't help giving poor returns in MPG. Stick in some high quality diesel and give it a good hard drive to help clean the engine, then stick to high quality diesel and you'll start to see increase in figures.

For reference I only use Shell or BP in mine that has a quality cetane rating and always avoid supermarket and sub brand fuels.
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Nothing to see here.... move along in an orderly fashion please!
E91 D3 Bi-turbo Touring #004 - (sold)
E46 B3 3.3 Saloon #032
F31 D3 Bi-turbo Touring #172
Mk1 Focus RS #516
and a 1987 Sierra RS Cosworth (currently being restored)
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