Do we need to warm up engine in the morning???
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From: SF Bayarea
MBenz
Do we need to warm up engine in the morning???
Hello, have a quick question here. On new car like W211, do we need to warm up the engine in the morning before driving it out? How long? i heard from some people that new car is no longer need warming up and can just start & go. i am an oldies, all my cars are 1999-2000 and i always do some 5-10mins engine warm up before out.
please let me know.
please let me know.
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Joined: May 2004
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From: NJ
'05 e320 cdi, '05 lexus rx330
Originally Posted by lpolo
Hello, have a quick question here. On new car like W211, do we need to warm up the engine in the morning before driving it out? How long? i heard from some people that new car is no longer need warming up and can just start & go. i am an oldies, all my cars are 1999-2000 and i always do some 5-10mins engine warm up before out.
please let me know.
please let me know.
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Joined: Sep 2003
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From: Oslo - Norway
Originally Posted by lpolo
Hello, have a quick question here. On new car like W211, do we need to warm up the engine in the morning before driving it out? How long? i heard from some people that new car is no longer need warming up and can just start & go. i am an oldies, all my cars are 1999-2000 and i always do some 5-10mins engine warm up before out.
please let me know.
please let me know.
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From: Ft. Lauderdale Area, USA
2015 ML 350
If it warms up idling, it'll warm up moving. Just just drive it gently 'till the temp indicator moves up about 1/4 way. Warming up a fuel injected car is a waste of gas & time. Carbureted cars had to be warmed up a little because they hardly were driveable when cold.
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From: Sacramento
'08 AM Vantage V8 - '03 E500
Since you're in California, you probably don't have a CDI. A diesel may actually require some warm-up in cold weather - I don't really know - but like the others said, standstill warmups of any other W211 are just a waste of gas. People in The Great Frozen North might justify the practice as an opportunity to warm up the interior of the car and defrost the windows in winter, but that hardly applies in the Bay Area.
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From: Torquay, England
E-class E300e Estate, Sprinter (stretched limo)
[QUOTE=DWP]Since you're in California, you probably don't have a CDI. A diesel may actually require some warm-up in cold weather/QUOTE]
Correct the CDI still has a 'Pre-Glow' However even in winter it only takes a few seconds to go out, and then vav - a - vav - a - voom. Or as the philastines amongst us still think 'knock, cadonk, knock'. 
Bye for now,
John
Sunny but windy Torquay
Correct the CDI still has a 'Pre-Glow' However even in winter it only takes a few seconds to go out, and then vav - a - vav - a - voom. Or as the philastines amongst us still think 'knock, cadonk, knock'. Bye for now,
John
Sunny but windy Torquay
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From: Ft. Lauderdale Area, USA
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Diesels are computer controlled & injected too so they are "good to go" right away too. As they warm up, they will run quieter & smoother. No need to waste that fuel either.
In the old days without computers & injection, when cars were cold, that would not get the exact air fuel mixture when cold, so they would gasp & choke, or run rich & flood, then stall or buck ...thats all gone now. People who began driving in modern times have no idea how crude cars were compared to todays cars. The cheapest cheap car starts & runs better in the middle of the winter than even the best of the best cars of the '60s '70s
In the old days without computers & injection, when cars were cold, that would not get the exact air fuel mixture when cold, so they would gasp & choke, or run rich & flood, then stall or buck ...thats all gone now. People who began driving in modern times have no idea how crude cars were compared to todays cars. The cheapest cheap car starts & runs better in the middle of the winter than even the best of the best cars of the '60s '70s
Last edited by Barry45RPM; Sep 18, 2004 at 02:30 PM.
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MBWorld Fanatic!
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From: Torquay, England
E-class E300e Estate, Sprinter (stretched limo)
Originally Posted by Barry45RPM
Diesels are computer controlled & injected too so they are "good to go" right away too. As they warm up, they will run quieter & smoother. No need to waste that fuel either.
Hi Barry Do you remember that thread you started about the E class Owners Manual?????
Well.............
UK Edition page 45
Vehicles with a diesel engine
Turn the key to position 2 in the ignition lock.
The preglow indicator lamp in the instrument cluster lights up.
As soon as the preglow indicator lamp goes out, turn the key to position 3 in the ignition lock and release it.
The engine starts automatically.
I
You can start the engine without preglow if the engine is warm
Me again, As my old driving instructor used to say, "Once you pass your test you will be develop all sorts of bad habits, try your best to avoid them"
I don't doubt that the engine will start without waiting for the preglow to go out. After all it is only on for a few seconds maximum. I am also sure though Mercedes-Benz would not fit unnecessary technical gizzmo's in their engines if they were not required.
Happy motoring
Regards,
John
Dusk in Torquay
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From: Ft. Lauderdale Area, USA
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Didn't mean to imply you don't need to use the glow plugs. (Who needs to crank that long!) I meant that once its started you can put it in gear & go without letting the engine "warm up" to normal operating temperature when the heat & compression will make the car smoother & quieter...
(...Dad had an '84 S500 turbo diesel till 2000)
(...Dad had an '84 S500 turbo diesel till 2000)
Last edited by Barry45RPM; Sep 18, 2004 at 04:48 PM.
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From: Torquay, England
E-class E300e Estate, Sprinter (stretched limo)
Originally Posted by Barry45RPM
Didn't mean to imply you don't need to use the glow plugs. (Who needs to crank that long!) I meant that once its started you can put it in gear & go.
Totally agree
Kind regards
John
Bedtime in Torquay
Goodnight
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From: Red Sox Nation (No. Va. chapter)
2004 E500
Originally Posted by Barry45RPM
In the old days without computers & injection, when cars were cold, that would not get the exact air fuel mixture when cold, so they would gasp & choke, or run rich & flood, then stall or buck ...thats all gone now. People who began driving in modern times have no idea how crude cars were compared to todays cars. The cheapest cheap car starts & runs better in the middle of the winter than even the best of the best cars of the '60s '70s
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From: Ft. Lauderdale Area, USA
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Remember not being able to pull away from the curb after a cold start without either hearing a "cough & a flood" stall out (unless you could "vibrate" the gas pedal just right)? ...and that hissing sound just before the shudder & restart? Yech!
Todays new drivers have no idea what a bad car is!
Todays new drivers have no idea what a bad car is!
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From: Chino Hills, CA
2007 E63, 2007 BMW 335i Coupe & 1991 Honda Accord
Originally Posted by lpolo
i am an oldies, all my cars are 1999-2000 and i always do some 5-10mins engine warm up before out.
please let me know.
please let me know.
Senior Member
Joined: Jun 2004
Posts: 474
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From: Red Sox Nation (No. Va. chapter)
2004 E500
Originally Posted by Barry45RPM
Remember not being able to pull away from the curb after a cold start without either hearing a "cough & a flood" stall out (unless you could "vibrate" the gas pedal just right)? ...and that hissing sound just before the shudder & restart? Yech!
Todays new drivers have no idea what a bad car is!
Todays new drivers have no idea what a bad car is!
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From: Christchurch, New Zealand
17 E220D, 11 E350 CDI(sold), 06 CLS320 CDI (sold), 05 Cadillac DeVille (gone), 04 E320 CDI (sold)
I had Chrysler Valiant with automatic choke. On cold days it would pour fuel into the engine. With the automatic in Drive, it would get up to 45mph, without touching the accelerator!! Driving to work in the morning was all done with the brakes...
