New Changes to the 2010 M3
New Changes to the 2010 M3
Author
Discussion

yinujim

Original Poster:

201 posts

224 months

Thursday 15th July 2010
quotequote all
Does auto stop start increase engine wear?

http://www.m3post.com/forums/showthread.php?t=4084...

Clivey

5,530 posts

225 months

Friday 16th July 2010
quotequote all
yinujim said:
Does auto stop start increase engine wear?

http://www.m3post.com/forums/showthread.php?t=4084...
It must do, surely?

You CAN turn the system off though, as with other BMW models. My thoughts on the system are basically as follows:

- If it means that petrolheads (should that be PistonHeads? readitlaugh) can still afford to run cars with actual engines (rather than motorised pencil sharpeners), it's a good thing. - This system could be the difference between a £200 or £400 tax bill depending on the car, as well as a benefit for commuters or town-dwellers.

- If technologies like this can be made light enough, mean an increased cruising range, less time/money at the pumps and lower emissions without sacrificing the drive/performance or inconveniencing you at all, what's not to like?

Zebler

10 posts

186 months

Monday 19th July 2010
quotequote all
This kind of stuff sounds good to me, just so long that there is an easy way to disable it smile

We get cheaper tax, and also a car that we like....I just hope that it can be turned off be default.

alock

4,466 posts

232 months

Wednesday 21st July 2010
quotequote all
Clivey said:
yinujim said:
Does auto stop start increase engine wear?

http://www.m3post.com/forums/showthread.php?t=4084...
It must do, surely?

You CAN turn the system off though, as with other BMW models. My thoughts on the system are basically as follows:

- If it means that petrolheads (should that be PistonHeads? readitlaugh) can still afford to run cars with actual engines (rather than motorised pencil sharpeners), it's a good thing. - This system could be the difference between a £200 or £400 tax bill depending on the car, as well as a benefit for commuters or town-dwellers.

- If technologies like this can be made light enough, mean an increased cruising range, less time/money at the pumps and lower emissions without sacrificing the drive/performance or inconveniencing you at all, what's not to like?
Anyone buying 2nd hand has to assume its been left enabled by first owner. Would you prefer a 100,000 mile car with or without thiss feature?

Clivey

5,530 posts

225 months

Monday 2nd August 2010
quotequote all
alock said:
Anyone buying 2nd hand has to assume its been left enabled by first owner. Would you prefer a 100,000 mile car with or without thiss feature?
At 100k miles, the start/stop system is just one entry in a whole list of things to be scrutinised. A car that's done that many miles in the hands of careless and/or unsympathetic owners could need a complete rebuild / restoration in any case.

Dracoro

8,956 posts

266 months

Tuesday 3rd August 2010
quotequote all
Only time will tell whether SS is a good thing or not (with regards to reliability).

As I understand it, the engine stops at "just the right place" with everything "primed" just so, so that a restart is not like a normal start where all the pistons could be at any position.

So, does re-starting using SS produce more or less wear than the engine spinning round at 1000 times a minute? i.e. if, on a typical commute, 10 minutes waiting in traffic, at lights etc. could mean 10,000 revolutions more than is needed.

It *may* actually mean LESS wear for all we know.

Edited by Dracoro on Tuesday 3rd August 23:13

jazzyjeff

3,652 posts

280 months

Wednesday 4th August 2010
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Dracoro said:
It *may* actually mean LESS wear for all we know.
Quite. Plus there's arguably less wear on the ignition system (unless the driver is an idiot that likes running their engine for minutes/hours on end in traffic jams).

JJ

thatone1967

4,218 posts

212 months

Friday 6th August 2010
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Saw the head line and thought... not MORE Bloody M3 Roadworks!!!!!