automatic gear change

geo.k23 · 10th December 2020, 10:54

Hi all question about automatics, it may just be me as this is my first automatic rover cdt, it seems to me that it takes a while to change up gears and needs to be doing at least 30+ before going into top gear, i find the mileage really poor driving in town if under 30 it changes down it may be my driving i also have a bmw x3 2.0d manual which i think is better around town, can anyone enlighten me as to whether it's normal or is there a problem thanks in advance

coolguy · 10th December 2020, 11:06

Remember top gear is 5th, and mine doesn't usually go into top until about 30mph. Been the same for 11 years! The V6s do seem to change up much quicker. make sure you have not inadvertently selected sport mode which does hold gears longer.

Ray L · 10th December 2020, 13:27

on my remapped cdti top gear comes in at about 45/47 mph. 4th gear comes in at about 28/30 mph.

geo.k23 · 10th December 2020, 13:33

Quote:

Originally Posted by Ray L

on my remapped cdti top gear comes in at about 45/47 mph. 4th gear comes in at about 28/30 mph.

that could be the problem i am probably only in 4th gear when driving local as i am only doing about 30 mph

trikey · 10th December 2020, 14:55

Remember the gearbox won’t lock up in top gear until the fluid is up to temperature.

Sent from my iPhone using Tapatalk

BoroRover · 10th December 2020, 19:31

Quote:

Originally Posted by Ray L

on my remapped cdti top gear comes in at about 45/47 mph. 4th gear comes in at about 28/30 mph.

Ditto my diesel auto is around those speed gear changes.

BoroRover · 10th December 2020, 19:34

Quote:

Originally Posted by Ray L

on my remapped cdti top gear comes in at about 45/47 mph. 4th gear comes in at about 28/30 mph.

It's a Ditto from me, my remapped CDTI does the same.

bl52krz · 10th December 2020, 21:47

Mines not a diesel, KV6 Rover75. 20mph into 3rd. 30mph into 4th . 40mph into 5th. Locks up around 60 mph in 5th. That’s on light throttle in economy.

geo.k23 · 11th December 2020, 07:57

Quote:

Originally Posted by trikey

Remember the gearbox won’t lock up in top gear until the fluid is up to temperature.

Sent from my iPhone using Tapatalk

excuse my ignorance trikey but what do you mean by Lock Up in top gear

roverbarmy · 11th December 2020, 08:58

Quote:

Originally Posted by geo.k23

excuse my ignorance trikey but what do you mean by Lock Up in top gear

See "lock up" about half way down page:-
https://en.wikipedia.org/wiki/Torque_converter
On a level road at low throttle, you can sometimes just hear and feel it.

10th December 2020, 10:54	#1
geo.k23 Loves to post Rover 75 Tourer CDT Join Date: Apr 2014 Location: Alexandria Posts: 462 Thanks: 451 Thanked 30 Times in 30 Posts	automatic gear change Hi all question about automatics, it may just be me as this is my first automatic rover cdt, it seems to me that it takes a while to change up gears and needs to be doing at least 30+ before going into top gear, i find the mileage really poor driving in town if under 30 it changes down it may be my driving i also have a bmw x3 2.0d manual which i think is better around town, can anyone enlighten me as to whether it's normal or is there a problem thanks in advance

10th December 2020, 14:55	#5
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,754 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Remember the gearbox won’t lock up in top gear until the fluid is up to temperature. Sent from my iPhone using Tapatalk __________________ Lest we forget..

10th December 2020, 21:47	#8
bl52krz This is my second home Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008 Location: Birmingham Posts: 11,385 Thanks: 6,587 Thanked 2,262 Times in 1,729 Posts	Mines not a diesel, KV6 Rover75. 20mph into 3rd. 30mph into 4th . 40mph into 5th. Locks up around 60 mph in 5th. That’s on light throttle in economy. __________________ Great Barr, Birmingham.

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10th December 2020, 11:06	#2
coolguy Coolguy Rover 75 CDT Tourer Auto, Rover 75 2.0 Connoisseur Auto, MG ZT 2.5 Auto and MG ZT Cdti Auto (Monogra Join Date: Nov 2009 Location: Finedon Posts: 1,896 Thanks: 933 Thanked 638 Times in 430 Posts	Remember top gear is 5th, and mine doesn't usually go into top until about 30mph. Been the same for 11 years! The V6s do seem to change up much quicker. make sure you have not inadvertently selected sport mode which does hold gears longer.

10th December 2020, 13:27	#3
Ray L Avid contributor rover 75 saloon Join Date: Jul 2010 Location: Worcester Posts: 187 Thanks: 14 Thanked 49 Times in 27 Posts	on my remapped cdti top gear comes in at about 45/47 mph. 4th gear comes in at about 28/30 mph.