1998 Mercedes-Benz CL420 (C140)

1998 Mercedes-Benz CL420 (C140)

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tobinen

Original Poster:

9,243 posts

146 months

Monday 15th August 2016
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First real major issue this afternoon, the driver's door window is stuck three-quarters open. It went down fine but not up. Can't hear the motor either. Fortunately a reputable local garage has taken it in tonight and will look tomorrow.

tobinen

Original Poster:

9,243 posts

146 months

Wednesday 17th August 2016
quotequote all
Fair play to the garage, they finished it yesterday and I collected it this morning. The rivets had come away from the metal so they carried out some welding and fixed it. A new regulator is back-ordered from Germany with 10 days quoted. It's also £285 without the motor.

Downside is the close feature doesn't work anymore. I held the up button for 10 secs but it makes no difference. Their chap thinks it's related to the rear window being stuck up so it can't "learn". I don't know

Hopefully my bonus is paid next month and I'll take it back for both to be looked at.

£192.00 today.

tobinen

Original Poster:

9,243 posts

146 months

Monday 19th September 2016
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A piece of the weather seal which runs up the A pillar and along the roof line came off yesterday. It was perished so I knew it was coming. I'll add it to the rear window job in a couple of weeks.


tobinen

Original Poster:

9,243 posts

146 months

Friday 23rd September 2016
quotequote all
New weatherseal ordered. The kind chap at MB Newbury knocked 15% off if I stock ordered it from Germany (about a week) but even then it's £213.18

I hope it's a DIY job to fit.

I had a very decent cup of coffee while I waited and there were three (one very) attractive girls eager to see I was attended to.

The only downside to their showroom environment is the music playing over the PA. A bit too loud and unnecessary.

tobinen

Original Poster:

9,243 posts

146 months

Friday 28th October 2016
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I dropped the car off at the garage for the OS quarter window stuck. Unfortunately no repair possible this time so a new regulator and motor assembly ordered from Ze Fatherland - £350 plus fitting, total £579 which I thought was about right considering.

It should be around a week from MB so the garage is keeping the car.

tobinen

Original Poster:

9,243 posts

146 months

Monday 7th November 2016
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I collected the car on Friday and all good. The windows now sync correctly and the new weatherseal is in place. They said it was a pig of a job so to charge me two hours is very reasonable. They are a good bunch and enthusiastic so I have found my go-to garage and very close to me.

The old regulator:


tobinen

Original Poster:

9,243 posts

146 months

Friday 30th December 2016
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Driver's door mirror has stopped heating which is a pain now it's colder. MB want £344 for a self-dimming one (blue tint) or £56 for a clear one. The left side has a blue tint but I'm not convinced it dims automatically.

Anyone know if the later R129 uses the same glass as a facelift 140?



tobinen

Original Poster:

9,243 posts

146 months

Monday 30th January 2017
quotequote all
BAS/EPC light came on recently, which I put down to low(er) battery voltage rather than a proper fault. I did a 45 mile each-way trip on Saturday and the light went out after 15 miles or so. However, this morning it's back on so perhaps there is a fault. Turning the steering lock-to-lock did not work either.

It's coming up to 100,000 miles and a regroup of the current list of jobs is:

Heated rear window not working
RH door mirror not heating
LH door mirror not folding in
Oil pressure gauge intermittent
Light on as above
Outside temperature display bulb out
Alarm interior sensors require refitting
Pre-2001 font number plates desirable but not essential
Rust bubbles starting to grow on the wings.
New tyres should be due late summertime based on current wear rates

tobinen

Original Poster:

9,243 posts

146 months

Thursday 9th February 2017
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BAS light eventually went out after a long run so as I suspected, the battery voltage had dropped.

Just check everything works really. Soft close, all the electrics, especially the HRW which might be due to rear screen delamination (they all do that sir). Front suspension arms work hard, if you can check all those bushes inner and outer. Rust will also be a factor given how old these are now. Engines and boxes are pretty sturdy though, as long as they've had proper servicing.

tobinen

Original Poster:

9,243 posts

146 months

Wednesday 12th April 2017
quotequote all
BAS/ESP light now on constantly despite a few days with it off, and this morning the ABS light decided to join in. Car booked in Tuesday.

tobinen

Original Poster:

9,243 posts

146 months

Friday 21st April 2017
quotequote all
Oil pressure gauge now fixed with a new sender. BAS/ESP light still on despite a new brake light switch. The garage diagnostic software won't drill in further to locate the fault so I will book in with an MB specialist with STAR. The error message is along the lines of "B1042 CAN communication fault to brake assist module". He cleared the codes but this one came back.

They also sorted the catching of the seat belt extender which was left over from when they replaced the OSR window regulator.

NSF fog lamp bulb replaced.

Bill today was £252.48


tobinen

Original Poster:

9,243 posts

146 months

Sunday 21st May 2017
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A milestone achieved and homage to r129sl


tobinen

Original Poster:

9,243 posts

146 months

Tuesday 23rd May 2017
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New front pads fitted today at a local tyre place for £129 as the pedal was rumbling. No pad warning light had illuminated but new wires fitted with the pads today.

tobinen

Original Poster:

9,243 posts

146 months

Friday 23rd June 2017
quotequote all
I took it over to an MB specialist in Caversham for the BAS warning light as they have STAR. Cleared the codes and rechecked but the light comes back on a second after starting. He's pretty sure it's not the steering angle sensor so it's booked in next week for a more thorough check.

It's also started to run a bit lumpy and with the fault codes printed off today it looks like no.8 cylinder has a misfire, code P0300

I've overlooked the fact that the MoT runs out on Wednesday but I am 99% certain the BAS warning light is a fail in any case, so I'll have to risk a few days without one.

In the meantime, I will check the fuses for any corrosion or decay.

tobinen

Original Poster:

9,243 posts

146 months

Saturday 1st July 2017
quotequote all
Took it back over to SMS yesterday and they are pretty sure the BAS module has had it. It's located under the servo and can be subject to water ingress apparently. Rather than order a new one from MB, they've found a 2nd hand one from a breaker and assure me it's a very uncommon fault so I should be OK. I will bow to their superior knowledge.

They wouldn't keep the car on their premises unfortunately due to lack of space (they are rammed and flat-out) so I drove it back home 20 miles and will have to return on Tuesday or Wednesday. I hate driving a car with no tax or MoT but no choice really.

The misfire seems to come and go so I will put up with it for MoT testing purposes.I suspect it will fail again on emissions due to missing the LH catalytic converter but I will cross that bridge when it comes


tobinen

Original Poster:

9,243 posts

146 months

Wednesday 5th July 2017
quotequote all
BAS module replaced for the sum of £180 inc VAT. Apparently a new module is over £300 so SMS sourced a second-hand one for £96. No more warning light and the MoT is booked tomorrow. I'm quite sure it will fail on emissions and the misfire still comes and goes. There may even be another surprise waiting...

tobinen

Original Poster:

9,243 posts

146 months

Thursday 6th July 2017
quotequote all
Yes, it's located under the servo, but I haven't seen it myself. I would start the car and about 3 seconds later it would illuminate and stay on.

Happily and surprisingly, it has passed the test today. Now to tax it.

tobinen

Original Poster:

9,243 posts

146 months

Monday 10th July 2017
quotequote all
As expected it was the CO which was the struggle. Limit is 0.300 and it just made it through with 0.299. I suppose not too bad with 50% of catalytic converters

tobinen

Original Poster:

9,243 posts

146 months

Thursday 3rd August 2017
quotequote all
I have water ingress through the LH A pillar trim so I suspect I have a blocked sunroof drain.

tobinen

Original Poster:

9,243 posts

146 months

Thursday 3rd August 2017
quotequote all
Further searching reveals it's likely to be a lot worse. Drain corroded and separated away from the hose. Not good.

https://youtu.be/55cCZ2P2aNE