Driving Style and Autobox Wear

television

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This thread is getting stupid, more about attacking others values, freedom of choice and thought!

We need a current automotive design engineer to put the final facts down.

For my part, amongst my qualifications, I hold a BTEC in Technology, engine theory being one of the components. It was a ****** long time ago that I learnt, so I am always open to be corrected.

Roll on automotive engineer and sort out this thread once and for all!

I agree whole hearted with you.

I have a machine tool making certificate, those basic facts that we were taught have not changed, only the way they go about things now.

From the MB side, in the 30,000 pages that I have,there is not one fault recorded for a car that has sat for too long in D.
 

eric242340

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I agree whole hearted with you.

I have a machine tool making certificate, those basic facts that we were taught have not changed, only the way they go about things now.

From the MB side, in the 30,000 pages that I have,there is not one fault recorded for a car that has sat for too long in D.

I could not agree more;) :D
 

Glenn Smith

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This thread is getting stupid, more about attacking others values, freedom of choice and thought!

We need a current automotive design engineer to put the final facts down.

For my part, amongst my qualifications, I hold a BTEC in Technology, engine theory being one of the components. It was a ****** long time ago that I learnt, so I am always open to be corrected.

Roll on automotive engineer and sort out this thread once and for all!

Im a vehicle technician, in D the vehicle will use more fuel, i've just done a test, no auto here at the moment, but holding steering on a lock quantity of fuel injected goes up around 30% and yes the torque conerter will generate heat. I don't know much about the fancy hold systems or how they work, but they are purely a driver aid, a modern gearbox is designed to withstand most abuse that is thrown at it so overheating would only be a problem in the extremes (if the box has been used hard followed by a long stop in traffic in hot ambient temperatures with A/C on for instance) Also, as i said before, you are very unlikely to wear your box out by moving into neutral then back to D. There is no right or wrong way to use the auto box, see it as a complex tool, it has many functions which you use however you wish to accomplish the job at hand, some of us are harder on our tools than others, i for instance don't hold my steering at full lock as it puts strain on the components and heats the oil and uses more fuel my other half always pulls it hard on the stop in the hope of doing a tighter turn. It really is each to their own.
 

panason1c

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Im a vehicle technician, in D the vehicle will use more fuel, i've just done a test, no auto here at the moment, but holding steering on a lock quantity of fuel injected goes up around 30% and yes the torque conerter will generate heat. I don't know much about the fancy hold systems or how they work, but they are purely a driver aid, a modern gearbox is designed to withstand most abuse that is thrown at it so overheating would only be a problem in the extremes (if the box has been used hard followed by a long stop in traffic in hot ambient temperatures with A/C on for instance) Also, as i said before, you are very unlikely to wear your box out by moving into neutral then back to D. There is no right or wrong way to use the auto box, see it as a complex tool, it has many functions which you use however you wish to accomplish the job at hand, some of us are harder on our tools than others, i for instance don't hold my steering at full lock as it puts strain on the components and heats the oil and uses more fuel my other half always pulls it hard on the stop in the hope of doing a tighter turn. It really is each to their own.

Well said, though i suspect the next post will be from a certain poster suggesting you must have 'imagined' it..... :rolleyes:
 
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Trophy1200

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I do what I want and don't give a toss. If something's going to wear in each situation, then surely a variety of situations will save total wear on some components and lack of wear on others. Let's even out the wear, forget about the negligble fuel cost increase, if any, and just enjoy life.

If stopped at lights, D and footbrake.
If stopped for more than a few minutes, N and parking brake.
If stopped and getting out of the car, P and turn off, take keys, phone, cigarettes, wife if she's with me , and concentrate on what I'm doing , where and why. Forget about car until I need it again.

Life's too short for worrying, enjoy your car, enjoy your driving, enjoy life if you got one. :) :) :) :) :) :)
 

kebo57

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HI
Would I create wear if I had left foot on brake and right foot on accelerator, lets say 2500 rpm then raise left foot (to joint 60 mph traffic)
Would I accelerate like sh1t off a shovel?
sorry I couldn't resist
Kevin
 

Mr Teddy Bear

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I think you would for awhile Kebo57 then you would be changing the box!

Would you like to conduct a experiment on this on our behalf !!!!!!!

Just Joshing Honest
 

Alf12

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:confused: I Have A Problem With The Auto Box On A 2006 reg CL500. When Stopped On Incline The Car Rolls Backwards Unless I keep Revs High. Anyone Had This Problem. Dealer Says It Is Normal. I Have Driven 5 Autos In Last 10 Years And Never Had This Occurs. Comments Would Be Appreciated. Obviosly the box is in D when this happens. Excuse my manners this is first time on..
 
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eric242340

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Would I create wear if I had left foot on brake and right foot on accelerator, lets say 2500 rpm then raise left foot (to joint 60 mph traffic)
Would I accelerate like sh1t off a shovel?
sorry I couldn't resist
Kevin
Errmm, Dont think so, unless you have a S Class 220 model or 221 model 600 with twin turbo. Then you would only need the accellerator pedal (the brakes are only required after ****ing someone off) lol. These cars are not spam cans on a racing circuit.;)
 

television

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:confused: I Have A Problem With The Auto Box On A 2006 reg CL500. When Stopped On Incline The Car Rolls Backwards Unless I keep Revs High. Anyone Had This Problem. Dealer Says It Is Normal. I Have Driven 5 Autos In Last 10 Years And Never Had This Occurs. Comments Would Be Appreciated. Obviosly the box is in D when this happens. Excuse my manners this is first time on..

This is an interesting one, Of the 300 odd that I have had, only the SL that I have now will roll back, it seems to be an individual thing.
 

television

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Errmm, Dont think so, unless you have a S Class 220 model or 221 model 600 with twin turbo. Then you would only need the accellerator pedal (the brakes are only required after ****ing someone off) lol. These cars are not spam cans on a racing circuit.;)

The other thing is eric on many modern cars like mine, the throttle is dead until you take your foot off the brake.
 

kebo57

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My ml roles back, which felt wrong when I first drove it, being use to 4 speed ZF box from landrover which doesn't role back even on 1 in 1 hill
Kevin
 

eric242340

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My ml roles back, which felt wrong when I first drove it, being use to 4 speed ZF box from landrover which doesn't role back even on 1 in 1 hill
Kevin
I cant speak for a 1 in 1 incline, but most Benz transmissions should hold the car still on a hill without touching the brake. And that applies to the 140/220/221 range. however the ML is in a range of its own. as yet difficult to say if its correct or not.
 

television

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Im a vehicle technician, in D the vehicle will use more fuel, i've just done a test, no auto here at the moment, but holding steering on a lock quantity of fuel injected goes up around 30% and yes the torque conerter will generate heat. I don't know much about the fancy hold systems or how they work, but they are purely a driver aid, a modern gearbox is designed to withstand most abuse that is thrown at it so overheating would only be a problem in the extremes (if the box has been used hard followed by a long stop in traffic in hot ambient temperatures with A/C on for instance) Also, as i said before, you are very unlikely to wear your box out by moving into neutral then back to D. There is no right or wrong way to use the auto box, see it as a complex tool, it has many functions which you use however you wish to accomplish the job at hand, some of us are harder on our tools than others, i for instance don't hold my steering at full lock as it puts strain on the components and heats the oil and uses more fuel my other half always pulls it hard on the stop in the hope of doing a tighter turn. It really is each to their own.

The power steering is nothing like an auto gearbox, on full lock you have a pressure valve blowing off, How can you compare that to a gearbox.

Still not one definite fact answer, and not one recorded fault listed on the web or with MB
 

kebo57

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I cant speak for a 1 in 1 incline, but most Benz transmissions should hold the car still on a hill without touching the brake. And that applies to the 140/220/221 range. however the ML is in a range of its own. as yet difficult to say if its correct or not.
The ZF box has a ratchet mechanism thingy on the main shaft mybe exploded diagram of ml box might show similar mechanism
Kevin
 

eric242340

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The power steering is nothing like an auto gearbox, on full lock you have a pressure valve blowing off, How can you compare that to a gearbox.

Still not one definite fact answer, and not one recorded fault listed on the web or with MB

I must say something on this one. Having tried this on the CO meter. Put the car on full lock with lights on and A/C running and then put the car in drive and whatch the CO, it does increase. Albeit it is only small, but it does prove something.;)
 

psmart

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I cant speak for a 1 in 1 incline, but most Benz transmissions should hold the car still on a hill without touching the brake. And that applies to the 140/220/221 range. however the ML is in a range of its own. as yet difficult to say if its correct or not.
Tch Tch... thats a bit underhanded isnt it Eric?????

ML - mine, no problem re:hill hold, so might be due to age on your Kebo. Change the oil as a starter.

ML's RULE OK :) ... especially Mark 1 and pretentious Mark 2's ...... definitely not the queer Mark 3's :D :D :D
 

kebo57

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Tch Tch... thats a bit underhanded isnt it Eric?????

ML - mine, no problem re:hill hold, so might be due to age on your Kebo. Change the oil as a starter.

ML's RULE OK :) ... especially Mark 1 and pretentious Mark 2's ...... definitely not the queer Mark 3's :D :D :D
Im going to test this roll back, yours doesn't mine does "not happy"
must agree with ML's RULE OK :D :D :D
Kevin
 

eric242340

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Tch Tch... thats a bit underhanded isnt it Eric?????

ML - mine, no problem re:hill hold, so might be due to age on your Kebo. Change the oil as a starter.

ML's RULE OK :) ... especially Mark 1 and pretentious Mark 2's ...... definitely not the queer Mark 3's :D :D :D

I was being honest on this, because I dont really know enough about the ML transmissions, especially when they have been used in varied ways. ie on road and never off road? on road and occassionally off road? What the effect is I am really not sure. I dont want to give duff info and thats why I quoted the models that I understand most.
 


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