auto down hill

gary t · 19th December 2013, 15:18

hi merry xmass all. not a problem but can some one please explain how the auto gearbox on my 75 18t knows i am going down hill and changes down to assist speed control ???

kaiser · 19th December 2013, 15:24

If you apply the brake lightly, and the speed increases, without using your throttle, you must be going downhill or being pushed or towed.

Try it, apply the brake on a down slope with no speeder, and the gearbox will in many circumstances (depending on speed, revs and gear) gear down to increase engine braking.

sytneraudi10 · 19th December 2013, 15:35

As above.

Its intelligent it will hold lower gears when going up hill and also when cold to warm the engine up and gearbox oil.

Also as said above adjusts if you are towing etc

gary t · 19th December 2013, 20:32

thanks thats brill

Jim Jamieson · 19th December 2013, 20:49

On my V6 this auto braking works quite well but is barely if at all noticeable on the diesel auto.

SD1too · 19th December 2013, 23:05

Jim,

See my recent post for an explanation of this.
Edit: Sorry, the link refers to cruise control disengagement so doesn't answer Jim's point fully after all.

Simon

James.uk · 20th December 2013, 02:11

It doesn't work very well on my car either, so i just change down manually at the top of the hill.

...

19th December 2013, 15:18	#1
gary t Loves to post rover 75 connoisseur se v6 Join Date: Mar 2013 Location: brockworth Posts: 278 Thanks: 46 Thanked 23 Times in 20 Posts	auto down hill hi merry xmass all. not a problem but can some one please explain how the auto gearbox on my 75 18t knows i am going down hill and changes down to assist speed control ???

19th December 2013, 20:32	#4
gary t Loves to post rover 75 connoisseur se v6 Join Date: Mar 2013 Location: brockworth Posts: 278 Thanks: 46 Thanked 23 Times in 20 Posts	brill thanks thats brill

19th December 2013, 23:05	#6
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,601 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Jim, See my recent post for an explanation of this. Edit: Sorry, the link refers to cruise control disengagement so doesn't answer Jim's point fully after all. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 20th December 2013 at 05:58..

19th December 2013, 15:24	#2
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	If you apply the brake lightly, and the speed increases, without using your throttle, you must be going downhill or being pushed or towed. Try it, apply the brake on a down slope with no speeder, and the gearbox will in many circumstances (depending on speed, revs and gear) gear down to increase engine braking.

19th December 2013, 15:35	#3
sytneraudi10 Banned Rover 75 Jap Spec V6, MG ZT 1.8T 160 Join Date: Nov 2013 Location: South Yorkshire Posts: 333 Thanks: 10 Thanked 33 Times in 33 Posts	As above. Its intelligent it will hold lower gears when going up hill and also when cold to warm the engine up and gearbox oil. Also as said above adjusts if you are towing etc

19th December 2013, 20:49	#5
Jim Jamieson This is my second home Rover less ! Join Date: Jun 2011 Location: Tarbolton Posts: 3,442 Thanks: 393 Thanked 888 Times in 542 Posts	On my V6 this auto braking works quite well but is barely if at all noticeable on the diesel auto.

20th December 2013, 02:11	#7
James.uk Passed Away 2002 Pale Blue. Rover 75 CDTi Connoisseur auto. 170K miles Join Date: Dec 2008 Location: Near the M67. Posts: 14,509 Thanks: 199 Thanked 585 Times in 397 Posts	It doesn't work very well on my car either, so i just change down manually at the top of the hill. ...