Battery Drain / No SatNav & Radio problems

Andy K · 1st May 2010, 13:08

Hi I Have a problem on my X reg R75 ConSE

The standby current is cycling between 700mA - 1A causing a flat battery.

At the same time, the entertainment display has a number of problems.

The font has changed on the Radio and CD displays (see picture). No RDS.

The SatNav option has disapeared from the menu options.
The SatNav CD unit in the boot has the LEDs flashing/alternating and won't eject.

Please help! Any idea's what unit has failed ?

Greeners · 1st May 2010, 13:11

It sounds like the SatNav computer is stuffed.

Simply check, open the boot, and the red lamp should go off in less then 60 seconds. Any longer and it's goosed. Don't open or close any other doors as it will restart the shut down cycle.

eurorover · 1st May 2010, 13:17

I have had that disply in the past mine was caused by water getting into the sat nav unit or onto the autochangrt in the boot

Andy K · 1st May 2010, 13:37

When you say the SatNav computer, is that the thing in the spare wheel well ?

Come to think of it the car was washed hours before the problem happened.

MN190 · 1st May 2010, 13:42

No its in the boot on the drivers side.
The boxes in the wheel well are the TV and Radio tuners.

Sat nav may have just got iself confused or has damp inside.
If you remove this following the correct shutdown procedure Leave in airing cupboard or a dry warm place overnight and it may be ok

See below for how to shutdown
http://www.the75andztclub.co.uk/foru...read.php?t=109

Andy K · 1st May 2010, 14:54

thanks very much.

removing the satnav cd unit has fixed the current drain.

Now 77mA alarm off,
80mA alarm on.

Radio display still odd.

Boot is nice and dry.

At least car driveable now though. Thank you

1st May 2010, 13:08	#1
Andy K Avid contributor 75 Saloon petrol 2.5 Join Date: Jun 2007 Location: England Posts: 193 Thanks: 11 Thanked 9 Times in 8 Posts	Battery Drain / No SatNav & Radio problems Hi I Have a problem on my X reg R75 ConSE The standby current is cycling between 700mA - 1A causing a flat battery. At the same time, the entertainment display has a number of problems. The font has changed on the Radio and CD displays (see picture). No RDS. The SatNav option has disapeared from the menu options. The SatNav CD unit in the boot has the LEDs flashing/alternating and won't eject. Please help! Any idea's what unit has failed ?

1st May 2010, 13:11	#2
Greeners Moderator MG-ZTT Join Date: Mar 2007 Location: Ware, Herts Posts: 19,798 Thanks: 161 Thanked 1,249 Times in 1,036 Posts	It sounds like the SatNav computer is stuffed. Simply check, open the boot, and the red lamp should go off in less then 60 seconds. Any longer and it's goosed. Don't open or close any other doors as it will restart the shut down cycle. __________________ *David* Impecunity is the mother of ingenuity Useful how to's for common problems Car Of The Month Jan 2014 [SatNav Power Down] [Coolant Level] [SatNav Repair] [Diesel Non Starting] [Paint Codes] [Rear Light Seals] [Reversing Light Switch] [Bleeding Brakes][Sunroof Drain] [Early ZT's][Instrument Pack Diagnostics][ATC Diagnostics]

1st May 2010, 13:17	#3
eurorover Posted a thing or two MG ZT Join Date: Feb 2008 Location: Swansea Posts: 1,231 Thanks: 0 Thanked 9 Times in 5 Posts	I have had that disply in the past mine was caused by water getting into the sat nav unit or onto the autochangrt in the boot

1st May 2010, 13:37	#4
Andy K Avid contributor 75 Saloon petrol 2.5 Join Date: Jun 2007 Location: England Posts: 193 Thanks: 11 Thanked 9 Times in 8 Posts	When you say the SatNav computer, is that the thing in the spare wheel well ? Come to think of it the car was washed hours before the problem happened.

1st May 2010, 13:42	#5
MN190 Posted a thing or two MG ZT 190+ Join Date: Nov 2006 Location: North Norfolk Posts: 1,423 Thanks: 2 Thanked 11 Times in 11 Posts	No its in the boot on the drivers side. The boxes in the wheel well are the TV and Radio tuners. Sat nav may have just got iself confused or has damp inside. If you remove this following the correct shutdown procedure Leave in airing cupboard or a dry warm place overnight and it may be ok See below for how to shutdown http://www.the75andztclub.co.uk/foru...read.php?t=109

1st May 2010, 14:54	#6
Andy K Avid contributor 75 Saloon petrol 2.5 Join Date: Jun 2007 Location: England Posts: 193 Thanks: 11 Thanked 9 Times in 8 Posts	thanks very much. removing the satnav cd unit has fixed the current drain. Now 77mA alarm off, 80mA alarm on. Radio display still odd. Boot is nice and dry. At least car driveable now though. Thank you