Hi
I have a Daimler 6 '95, with the battery in the boot. I take it that is common to all X 300 models. It’s just died in the last week, and doesn’t seem to want to charge up with a remote charger. I’m wondering if something is still running!
Any tips on how to remove it, I can’t see any obvious fixing mounts. And will I need to reboot anything if I change it.
Thanks B

 

Never put the battery back in backwards

This goes for charging cables and charging cables touching the battery cables in the air if removed

Positive vattery post goes in the forward direction of travel or forward

Never tighten the positive battery post too tight as there is a special shaped nut underneath that can split in 2

Ask me how I know

No special procedure needed on reinstallation on the X300 V12 ( X305 )
i
There is some quick things you can check to see if you have a alive car draining your battery

The car will not go into a sleep mode until about 20 minutes after key removal , The sleep mode battery drain draw is around 20 millii amps and can be seen on fuse # 4 in the trunk fuse box

This is your security Lock Control Module fuse

See minute 7 : 18 on this video

.................................................. .................................................. ................................................

When you pull the key out the steering column and your seat retracts to the driver exit position . If they physically do not or the position sensors do not agree the security system will not go to sleep

You can bypass this by rotating the column switch to off , and there are things you can do to restore this feature

In the bigger picture of your car's electrical distribution the King relays in each corner of the fuse boxes relax to the open position with the exception of the Left engine bay fuse box which only controls your horn

To test these King relays remove them with the key in the run position and remove them and they should click by feel going from closed to car rest open position

The term alive has to do with the alarm system and rest has to do with everything else outside the alarm system

These 2 above test must be done with a fully charged battery

 

There were three different sizes of battery originally installed in the X300's. Any of the sizes will work, but they do need to be vented externally. There should be a small hose that attaches to the battery and vents battery fumes out the boot floor. There should be a clamp that attaches the battery to the boot floor, at the end of the battery. It's at the base of the battery, not over the top of the case.

Remove the negative cable first, then the positive. On installing the new battery, attach the positive cable first, then the negative.

 

Thank you for your help, the battery did charge up overnight on mains, and started this morning from quite cold, but I’m not holding my breath. In my experience once au battery starts playing up, it is on its way.
But as Parker 7 said earlier, it might not be going into sleep, as occasionally the steering does not retract.
Anyway, it never rains but it pours, on a test drive, the car kept stalling at junctions, then the auto transmission light came on. Both problems have subsequently vanished on a retest.
Thanks again
B

 

Tilt ?

The steering column position sensor geartrain can drag the motor down and can easily be cleaned and lubed by just removing the sensor attached geartrain , this is different then the main retraction or tilt geartrain and motor itself

There is a Jaguar TSB on putting a stronger motor on the steering column but you can get around that

10-12 (jagrepair.com)

The transmission connector on the transmission body may be getting wet

The connector provides transmission speed sensor information to the transmission ECU and then the transmission ECU talks to the engine ECU as they dance together to coordinate their activities

This connector on the left aft section of the transmission can be accessed without jacking the car and sprayed

There is a trick to getting the connector off



another thing is the Papa Indy 1 and 61 connectors under the hood behind the right front headlights , these connectors contain some engine regulation wires

05.1-14 (jagrepair.com)

 

Thanks again, it’s very dry here at present though.
would this fault cause the car to stall? One point is though, despite being run for a while the temp gauge was still reading 0, but suddenly sprung to normal, about the same time as the stalling started. But the stalling prob and the trans light went out just like that. On a retest all was fine, tried it over and over.
yes the wheel allways tilts, but not always retract.
The seat retracts on exit but doesnt return on enter.
i much appreciate your help and advice.
By the way that video you posted is great, I didn’t know that foot on brake would cancel seat movement, it might be me, I tend to sit with my foot on the brake as I get in as my legs are long
B

 

Editing above post

The temp gauge in the instrument cluster is from the single wire sensor on top of the water pump / thermostat housing

The 2 wire temperature sensor next to it goes to the engine ECU

The instrument temperature gauge is a dummied gauge and does not respond normally as you would predict it to , this is common on the X300 and not the earlier X40

A sudden jump is different

You can remove the sensor and sand the corrosion off the copper washer as the sensor has a electrical grounding path and clean the connector

Your V12 may be a little different on the thermostat housing aspect

see page 225 for 2 wire ECU V12 engine coolant temperature sensor

801S TITLE (jagrepair.com)

The common denominator of your problems not related to rain is the King relay in the Left heeboard fuse box , This can be swapped with the Left engine bay fuse box king relay ( which in reality is only your horn )

The Left heelboard fuse box King relay is referred to as the ignition positive relay as you have 2 ignition positive relays on the X300 the other being the King relay for the Right engine bay fuse box

This Left heelboard fuse box controls the steering column , instrument cluster , and engine regulation ( some items )

 

These cars like full battery voltage, if the battery is failing it can cause all sorts of weirdness. Can you get the battery load tested? If it's more than about 5 years old I'd just replace it as a matter of course.

 

Thanks
Yes I’m sure you’re right, don’t know the age of battery, but try and find out, sometimes there marked, and I have old invoices, but even 5 years can be too long if they’ve not been charged regularly.
B

 

Is that what this hose is for?

 

G'day JNC,

That hose is an overboard vent hose for fumes generated when the battery is charging. The battery should have a small fitting on the end for the hose to connect on to though some modern batteries are fully sealed and don't have a vent at all.

Cheers,
Jeff.

 

Yes, that's the venting hose. There is usually a small fitting that goes into the battery and the other end the hose pushes onto.