The effect of short journeys on the engine? - MINI Cooper Forum

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post #1 of 12 (permalink) Old Mar 31st, 2014, 02:34 PM Thread Starter
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The effect of short journeys on the engine?

I have a Mini Cooper Clubman S Diesel.
I think i remember hearing that short journeys can impact on the engine and a while back, women who just drove into town and did the school run had issues with their cars because of that.

I am lucky that my place of work for two days a week is only 400 yards away. I can not walk there because of the equipment I require. Although I also do other trips on other days

My questions are…

Can short journeys really impact on the engine?

If so, where abouts does it impact, so I can inform the garage when the vehicle is next serviced?

Is there a way of preventing this (warming the car up first/throwing in longer journeys/driving very slowly/keeping the engine cold)?

Thank you.

Last edited by TangoCharlie27; Mar 31st, 2014 at 03:47 PM.
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post #2 of 12 (permalink) Old Mar 31st, 2014, 03:29 PM
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Thumbs up Short Trips......

I was always told short trips do harm the engine, mostly because of the moisture that never evaporates.

I only drive about 10 minutes to work and thought that was short. WoW... 400 yards

Always wanted an electric, that would be the best for me........
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post #3 of 12 (permalink) Old Mar 31st, 2014, 04:09 PM
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It isn't great for any car to do short journeys all the time, they need chance to heat up and burn away any condensation etc. They Also need a good blast now and again, once a week is usually good enough.. putting your foot down on short journeys without the car getting warm isn't the best either.

Yes warming the car up for 2-3 minutes can help

yes you can prevent it by doing the above.

Hope this helps
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post #4 of 12 (permalink) Old Mar 31st, 2014, 04:14 PM Thread Starter
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Thanks James. My last Mini was making a odd noise when the engine did get warm (usually in traffic). Sounded like an exhaust with a hole in! Mini Service could not detect it. I am now wondering if that the short journey's caused it?

What part of the engine should I tell the garage to check should it occur again?
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post #5 of 12 (permalink) Old Mar 31st, 2014, 04:39 PM
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You could have a pair of old MOT brake test rollers, without the drive etc, installed in your garage then you could set the car going on these whilst you have breakfast so when you come out to go to work its already done 20 miles or so and fully warmed up? what a great idea.
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post #6 of 12 (permalink) Old Mar 31st, 2014, 05:01 PM
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The exhausts are quite 'burbly' as standard, maybe it was that? I can't be sure to be honest without hearing it myself.
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post #7 of 12 (permalink) Old Mar 31st, 2014, 05:15 PM Thread Starter
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Quote:
Originally Posted by The Nun View Post
You could have a pair of old MOT brake test rollers, without the drive etc, installed in your garage then you could set the car going on these whilst you have breakfast so when you come out to go to work its already done 20 miles or so and fully warmed up? what a great idea.


Or I could drive around London first?
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post #8 of 12 (permalink) Old Mar 31st, 2014, 05:17 PM Thread Starter
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Quote:
Originally Posted by James Foulkes View Post
The exhausts are quite 'burbly' as standard, maybe it was that? I can't be sure to be honest without hearing it myself.
It was almost like a dashboard vibration but it seemed to come from the engine. Was like a loud muffled noise and happened at various rpm wether in gear or not. I really do not want it to occur with my new Mini.
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post #9 of 12 (permalink) Old Mar 31st, 2014, 08:24 PM
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Short journeys are bad for all engines especially diesels as an engine is at its best fuel efficiency and minimum wear takes place when it is at full operating temperature.

To help the situation do not warm the engine up by idling engine as this causes pollution and wear......drive off immediately after starting engine but use gentle revs and acceleration until warmed up to 'normal' if you have a gauge.

Diesels made after 2008 have DPF filters fitted which limit pollution and emissions but can clog up with short journeys as they need to regenerate regularly on a longer run......small diesel cars are not ideal for shopping or town cars....petrol would be better suited.
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post #10 of 12 (permalink) Old Apr 3rd, 2014, 05:08 PM
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Quote:
Originally Posted by mab01uk View Post
Short journeys are bad for all engines especially diesels as an engine is at its best fuel efficiency and minimum wear takes place when it is at full operating temperature.

To help the situation do not warm the engine up by idling engine as this causes pollution and wear......drive off immediately after starting engine but use gentle revs and acceleration until warmed up to 'normal' if you have a gauge.

Diesels made after 2008 have DPF filters fitted which limit pollution and emissions but can clog up with short journeys as they need to regenerate regularly on a longer run......small diesel cars are not ideal for shopping or town cars....petrol would be better suited.
Would you still recommend this with a petrol engine?
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post #11 of 12 (permalink) Old Apr 3rd, 2014, 09:36 PM
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Very important with a petrol as it will be on choke(richer). Start the engine and move off straight away is always the best bet.
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post #12 of 12 (permalink) Old Apr 3rd, 2014, 11:51 PM
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Quote:
Originally Posted by kteara View Post
Would you still recommend this with a petrol engine?
Yes.....whether petrol or diesel, do not warm up by idling, start and drive off straight away but drive gently while the engine is cold.

However modern automatics are often programmed to hold onto lower gears longer while cold to increase speed of warming up the engine and therefore cut pollution/emissions down to minimum asap.
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