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jerrytlr



Member Since: 02 Apr 2013
Location: France
Posts: 66

France 2003 Range Rover Vogue 4.4 V8 Oslo Blue
BMW 4.4V8 Engine management... bioethanol... and CEL reset

Hi I am about to put an Ethanol (E85) kit onto my 4.4 V8.

I am curious to know if this engine is fitted with a knock sensor that allows greater levels of ignition advance with higher octane fuel? For example, can it adjust to benefit from 98RON rather than 95RON?

Anybody know?

Just curious really.... could help the MPG on Ethanol a bit if the ECU can advance the ignition a bit as E85 has a RON above 100 I think.

Also, it is likely that the check engine light will come on when the car is first used with the kit intalled as it relearns its parameters - will this reset itself once everything comes back into line, or will I need a tool to reset it? Can a generic OBDII tool be used just to reset the CEL??

Cheers,

Jerry
ps all the kit does is lengthen the duration of the injector open cycle by a fixed amount to richen the mixture, relying on the standard ECU to make all of the fine adjustments using Lambda info etc. So it cannot alter ignition timing. It's pretty crude really....

Post #183531 18th Apr 2013 12:02pm
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Gazellio @ Prestige Cars



Member Since: 22 Jan 2010
Location: Chilterns, UK
Posts: 11309

United Kingdom 2010 Range Rover SE Td6 Zermatt Silver

Why?

Post #183543 18th Apr 2013 12:47pm
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jerrytlr



Member Since: 02 Apr 2013
Location: France
Posts: 66

France 2003 Range Rover Vogue 4.4 V8 Oslo Blue

Hi Gaz

Here in France you can buy E85 for around €0.95 per litre, so around 83p per litre. Unleaded is around €1.60 per litre at the moment, so similar to the UK.

Even allowing for the increased consumption when using E85, this represents a useful saving....

It is an experiment however, there are very mixed reviews on the forums over here in France about how much you can really save and even if it is worth fitting the E85 kits at all - so some experimentation is required. For example consumption with a 50:50 mix can be only slightly higher than pure 95, so the savings can be similar to running pure E85 with poorer mpg.

The more I know about how the BMW EMS works on the 4.4V8, the more likely I am to find the ideal solution quickly Smile

Hope that makes some sense....

Cheers

Jerry

Post #183551 18th Apr 2013 1:32pm
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Gazellio @ Prestige Cars



Member Since: 22 Jan 2010
Location: Chilterns, UK
Posts: 11309

United Kingdom 2010 Range Rover SE Td6 Zermatt Silver

Thumbs Up

Post #183552 18th Apr 2013 1:43pm
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kingpleb



Member Since: 07 Jun 2011
Location: Maybe here. Maybe there, I get everywhere!
Posts: 8455

United Kingdom 2005 Range Rover Vogue Td6 Bonatti Grey

Have you checked to see if any french BMW owners have come across issues if already converted?

Im sure the engine is fitted to the 540/740 and X5 as well Smile FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.

Post #183616 18th Apr 2013 10:24pm
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RR2008HSE



Member Since: 06 Jan 2013
Location: British Columbia
Posts: 2932

Canada 2008 Range Rover HSE 4.4 V8 Java Black

Just remember, it's not just the engine that has to accept E85, the whole fuel system must be capable. I hear of various hoses and other rubber bits that don't react well to ethanol. If the new kit sorts all that out, then Thumbs Up

Post #183620 19th Apr 2013 12:11am
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Mandu



Member Since: 03 Dec 2011
Location: Darwin, Northern Territory, Australia
Posts: 9

Australia 2002 Range Rover Vogue 4.4 V8 Zermatt Silver

Jerry

I think you will find that the 4.4 V8 is fine to run on E85 without alteration or any kit. I looked into it when I bought the car and it was listed as suitable and I have not had any problems to date. Do a search online there are lists of engines that are suitable for this fuel. I run three different cars on it. Apparently very unsuitable for two stroke engines though eg mowers and chainsaws etc

Hope this helps

Regards

Mandu 2002 L322 4.4 V8 Vogue

Post #183622 19th Apr 2013 12:27am
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jerrytlr



Member Since: 02 Apr 2013
Location: France
Posts: 66

France 2003 Range Rover Vogue 4.4 V8 Oslo Blue

Thanks everybody for the very helpful input

Mandu - are you running 100% E85 in your car with no issues?

RR2008 - I think any car from 2000 onwards should be fine wrt hoses etc.


Cheers

Jerry

Post #183628 19th Apr 2013 6:23am
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Mandu



Member Since: 03 Dec 2011
Location: Darwin, Northern Territory, Australia
Posts: 9

Australia 2002 Range Rover Vogue 4.4 V8 Zermatt Silver

Jerry

100% E85 with no issues. It is approved by BMW. Check it out online to satisfy yourself. It was a while ago and so I do not have a link for you.

Mandu 2002 L322 4.4 V8 Vogue

Post #183629 19th Apr 2013 6:32am
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jerrytlr



Member Since: 02 Apr 2013
Location: France
Posts: 66

France 2003 Range Rover Vogue 4.4 V8 Oslo Blue

Hi Mandu, I cannot find anything on the web or on BMW's sites about this Sad

I do wonder though if the Autralian market cars may be set up differently, perhap with an E85 compatible map as standard?

I have the kit now anyway, I will fit it and see what happens....


Cheers,

Jerry

Post #183773 20th Apr 2013 12:29pm
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Mandu



Member Since: 03 Dec 2011
Location: Darwin, Northern Territory, Australia
Posts: 9

Australia 2002 Range Rover Vogue 4.4 V8 Zermatt Silver

Hi Jerry

I must apologise I have got totally mixed up and was talking about E10 not E85 !!!!!!!????

E10 is suitable for all Land Rover and BMW vehicles (petrol of course) post 1986 manufacture and it was this I was referring to.

E85 apparently is suitable for very few at this point in time.


Cheers

Mandu 2002 L322 4.4 V8 Vogue

Post #183866 21st Apr 2013 5:48am
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KurtVerbose



Member Since: 08 Aug 2010
Location: Les Arses
Posts: 5848

Switzerland 2007 Range Rover Vogue TDV8 Stornoway Grey

If you break down at least you'll have something to drink to console yourself.

Post #183870 21st Apr 2013 7:34am
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jerrytlr



Member Since: 02 Apr 2013
Location: France
Posts: 66

France 2003 Range Rover Vogue 4.4 V8 Oslo Blue

Mandu that makes much more sense Smile

I will fit the kit and see what happens.....

Cheers

Jerry

Post #183949 21st Apr 2013 7:03pm
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