Thanks for the comments guys...
Well that dreaded MOT time had come round so I had to fix the only problem I knew of, the airbag warning light has been on for a while, had it code read and it was the driver’s side airbag so obviously suffering from the door loom problem (those who don't know it's the fact that it has the double opening hinges on the doors so they open wide but not far, makes the wiring to the door bend twice and get pulled every time you open the door, after a while the wires become work hardened and snap)
The only real fix is to take the whole loom out of the door, feed it back through to the drivers foot well and replace the wires one at a time, there are 28 wires and the vacuum pipe for the soft close doors, I bought some wire from eBay in assorted sizes and colours and started...
Door panel off (look on YouTube if you need to know how it comes off) then removed the keyless entry aerial unclip and unplug all the wiring harness and tape it up to feed it back through
This is the tunnel they put from the face of the door through to the door jam, makes it easy to get the wires through
Started to pull it back through and you can see where someone has been in there before
Pulled it back through and took the door jamb cover off and found this mess!!!
It’s in three separate looms so I pulled them into the car one at a time, then it was just a case of cutting out, soldering in and heat shrinking where needed, three wires were actually broken including one for the airbag and about a dozen more were very hard and needed replacing, the can bus wires were chaffed through so I had to do them as well, very fine wires and a pig to do.....
I decided not to retape the harness as this IMHO seems to help in breaking them!! keeps them all tight together so they have to bend in one.... I pulled them back through and they looked like this
looks a bit messy but they are now all done correctly
I used some nylon expanding sleeving I had in the garage, came off some old car I had, it's very flexible and smooth so seemed the ideal candidate... hope it does what I hope it will!!
Then it was just a case of feeding it all through and plugging it all in, refix the loom and put the door back together, all in all took about 3 hours with a few coffee breaks.... ended up with this lot on the floor afterwards!!!
Took it to our local indie and he turned the airbag light off for the modest price of £10... very good of him as I hate to think what the dealer would charge!!!
Whilst at the indie I had to pull it into the garage and squeeze it in so ended up with it parked on full lock, don't like leaving it like that when parked as it puts undue stress on the steering but I thought it won't be for long so would be OK..... lucky I did as I found the front two tyres were rather badly worn on the very inside edge, I knew they were not far off the wear lines and I had been doing research on replacements but thought these would be OK for the MOT.... how wrong I was!!!
This is what it looked like from looking under the arch.... could see a bit of feathering on the inside edge
But this wear is well past the edge, nearly on the sidewall....
So after some new 245/40/18's with a minimum Z speed rating... also a tyre make that does both sizes fitted to the CL500 so have to come in 265/40/18 as well....
It's got Continentals on the front and Dunlops on the back at present, read loads of tyre reviews and came to the conclusion that it's pot luck with tyre wear/noise/grip etc.... seems to depend a lot on the car type.... prices for premium brands started at about £130 a tyre and went upwards...
Then came across Maxxis, had several offroaders in the past with their mud tyres and was really impressed with them...
To cut a long story short I went for Maxxis MA-Z1 track day/drift tyres these are 245/40/18 97W so exceed the Z rating and a pretty high load rating, they get excellent reviews and are supposed to be the holy grail of tyres.... grip well and last well.... er yeah right!!!!
Maxxi are trying to get into the Drift scene at the moment so have developed this tyre to be very tough and not delaminate under track day/drifting conditions.... maybe they will last longer than the Conties... they were also only £81 so I thought for that price I'd give them a go, I expect them to be a bit loud with that aggressive V shaped tread pattern
They turned up so I popped down to a mate to get him to put them on, fitted and balanced no problem, asked him to balance the rears as well and then came the fun.... some total (fill in your favourite slander) head had rattle gunned on the locking wheel nuts, so out came the breaker bar and unfortunately it lived up to its name.... one rear came off alright then this happened on the other one
My mate offered to have a go with some removal tools but he was getting a queue so I said I'd sort it myself seeing as they didn't "have" to come off....
Dropped in at the Main Dealers on the way home and had a chat with Service, they said they'd have a go.... sat and drank coffee for over an hour getting more and more worried about the cost!!! Was then told they found a key that fitted and had managed to loosen all 4 off and correctly retorqued them, he handed me a new locking wheel nut, I asked how much and he just said "That's OK, no charge" well, after falling over I thanked him a thousand times and went to try the new front tyres out on the way to the MOT station....
First impressions are good, very crisp turn in, not to hard a ride and quieter than the worn out Continentals... I expect these will get louder as they wear...
Got it MOT'd and it sailed through with not even an advisory so dead chuffed...
A few more ideas in the pipeline so watch this space....
Costs
Wiring £14
Air bag light reset £10
Tyres £162
Fitting £20
MOT £40
So £246.... not bad at all, this CL has not cost as much as I thought it would (and yes, I know I shouldn't have said that!!!)