Car will open but not lock

tonedef · 3rd January 2020, 08:20

Hi. After my first Rover 75 died I got round to buying an MG ZT saloon. Loving it but there are a few things need sorting. First is that the key fob will open the car, sometimes all the doors sometimes just the drivers. It wont lock any though. The light flashes but nothing. I end up locking all the doors from inside getting out and locking drivers door by the key. Not the end of the world but I'm hoping to keep it awhile so would like to sort it.

Many thanks

oswestryalex · 3rd January 2020, 16:28

Hi, the first thing to try is the cheapest too - grease all the lock components and get them working freely and see if that sorts it. The fob unlocks the doors sequentially - one press unlocks the drivers, a second opens the front passenger, and a third and fourth each of the back doors. Locking should all happen at once.

Yorkshire GOC · 3rd January 2020, 17:28

Have you tried the key fob re-sync - press the padlock symbol 4 times to re-sync it to the car -worth a try.

Jamiewelch · 4th January 2020, 09:24

Quote:

Originally Posted by oswestryalex

Hi, the first thing to try is the cheapest too - grease all the lock components and get them working freely and see if that sorts it. The fob unlocks the doors sequentially - one press unlocks the drivers, a second opens the front passenger, and a third and fourth each of the back doors. Locking should all happen at once.

If your car does that then you've got some failing actuators! There are only 2 ways that the remote fob can unlock the doors. It is a T4 option called Single Point Entry. Either 1 press unlocks all doors. Or 1 press unlocks the drivers door, then the 2nd press unlocks the remaining doors.

tonedef · 5th January 2020, 13:33

Tried the 4 press on the padlock but nothing happened. Could be me doing it wrong.
As for the locks, all lock and unlock no problem using the internal button aat the handbrake. No sticking or some not working they all lock and unlock. Same with the unlock on the fob they all unlock ok. Wonder if a T4 check maybe needed?
Thanks for the replies though

Tony

Yorkshire GOC · 6th January 2020, 16:51

PM Big Russ at Liversedge nears Huddersfield - has a T4 and is a key expert.

Heddy · 6th January 2020, 19:45

Have you tried this?
https://the75andztclub.co.uk/forum/s...69&postcount=1

tonedef · 6th January 2020, 21:13

Will have a look in daylight.

Many Thanks

3rd January 2020, 08:20	#1
tonedef Regular poster MG ZT Diesel Auto Join Date: Sep 2014 Location: Chesterfield Posts: 66 Thanks: 13 Thanked 2 Times in 2 Posts	Car will open but not lock Hi. After my first Rover 75 died I got round to buying an MG ZT saloon. Loving it but there are a few things need sorting. First is that the key fob will open the car, sometimes all the doors sometimes just the drivers. It wont lock any though. The light flashes but nothing. I end up locking all the doors from inside getting out and locking drivers door by the key. Not the end of the world but I'm hoping to keep it awhile so would like to sort it. Many thanks

3rd January 2020, 17:28	#3
Yorkshire GOC I really should get out more....... Rover 75 connoisseur se v6 auto Join Date: May 2014 Location: Hull Posts: 2,063 Thanks: 1,842 Thanked 623 Times in 469 Posts	Have you tried the key fob re-sync - press the padlock symbol 4 times to re-sync it to the car -worth a try. __________________ She came off the Longbridge Line on 20-05-2003 The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide.

6th January 2020, 16:51	#6
Yorkshire GOC I really should get out more....... Rover 75 connoisseur se v6 auto Join Date: May 2014 Location: Hull Posts: 2,063 Thanks: 1,842 Thanked 623 Times in 469 Posts	PM Big Russ at Liversedge nears Huddersfield - has a T4 and is a key expert. __________________ She came off the Longbridge Line on 20-05-2003 The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide.

3rd January 2020, 16:28	#2
oswestryalex Loves to post Rover 75 1.8T connoisseur saloon 2003 in blue , MG ZT 190+ 2003 Join Date: Jul 2012 Location: Oswestry Posts: 308 Thanks: 159 Thanked 99 Times in 57 Posts	Hi, the first thing to try is the cheapest too - grease all the lock components and get them working freely and see if that sorts it. The fob unlocks the doors sequentially - one press unlocks the drivers, a second opens the front passenger, and a third and fourth each of the back doors. Locking should all happen at once.

5th January 2020, 13:33	#5
tonedef Regular poster MG ZT Diesel Auto Join Date: Sep 2014 Location: Chesterfield Posts: 66 Thanks: 13 Thanked 2 Times in 2 Posts	Tried the 4 press on the padlock but nothing happened. Could be me doing it wrong. As for the locks, all lock and unlock no problem using the internal button aat the handbrake. No sticking or some not working they all lock and unlock. Same with the unlock on the fob they all unlock ok. Wonder if a T4 check maybe needed? Thanks for the replies though Tony

6th January 2020, 19:45	#7
Heddy This is my second home None Join Date: Feb 2013 Location: None Posts: 5,556 Thanks: 465 Thanked 1,161 Times in 924 Posts	Have you tried this? https://the75andztclub.co.uk/forum/s...69&postcount=1

6th January 2020, 21:13	#8
tonedef Regular poster MG ZT Diesel Auto Join Date: Sep 2014 Location: Chesterfield Posts: 66 Thanks: 13 Thanked 2 Times in 2 Posts	Will have a look in daylight. Many Thanks