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With a spare couple of hours tonight I hoisted the 6.9 and decided to install the front bushings in the rear subframe. I am also going to do the semi-trailing arm bushes but not tonight. Here are the "before" pictures showing the right front rear-subframe bush in tension and compression and...

On a rainy Sunday morning I decided to tackle a squeaky low speed fan noise. While poking around I came across a large black vacuum line that looks like it was connected somewhere in the past but is now sitting free. The other end connects to a screwed fitting on the Cruise control modulator...

Finally got my 6.9 back on the road today with the air-con re-fitted (but not pumped up yet), driveshaft repaired and re-fitted , new 300K AMG replica speedo ( which is actually really good because I can now see up to 120k through the small wheel ) and new timing chain and tensioner. End...

Dropped my Axle off at The Star Shop today and went away for an hour or so. Herbert has the exact tool shown in the thread and when I came back it was all finished. Here is the result. Bill

Here is a synopsis of replacing a 6.9 timing chain as I performed yesterday. It does not include any discussion of the tensioner which is peculiar to the 6.9 and which I will photograph and display in another post in the future. I also did not change any sliders as in the 6.9 unlike the M116/7...

Today I removed my camcovers, alternator mounting bracket, plugs and leads and then removed the chain tensioner. I had an original chain so ground the ends off a link with my Dremel and then connected and pulled through a new M-B genuine chain (Chain and tensioner purchased from the Classic...

I am sure you hardened DIY'ers would have little interest but here are some photo's of todays axle removal for those who may be considering doing it. My right side inner axle shaft boot decided to Carc itself almost before my eyes as I was raising it on my hoist to work on my A-C and dump it's...

Help Styria, I did not realise that the CV joints are oil filled and always assumed that they were grease filled like the rest of the world so my apparent diff leak is a leaking boot which has obviously deceided to happen almost right in front of my eyes in an otherwise symptomless drivetrain...

Last week I changed the oil in my diff as it was the last unchanged fluid on my car. From the moment I dropped the plug my heart sank to it's boots as this opaque pink thick fluid the consistency of watery toothpaste came out. I refilled it with Penrite Limslip 90 and gingerly took it for a run...

As you may be aware I think I have found my leak - a porous corroded area on the suction side of the compressor manifold. On a 6.9 this is secreted on the right side of the motor beneath the battery tray and above the hydraulic lines for the dry sump. Here is a photo of the compressor in-situ...

I decided to replace the plugs in my Euro 6.9 while having a weekend fiddle and arrived home with the usual set of NGK's to find that NGK no longer manufacture their plugs with screw off mounting terminals. It had been fitted with Bosch WR 9DCX and were gapped at 1.1mm+. Starting was OK but not...

In early January I had my 6.9 aircon rebuilt with a new compressor and most lines replaced. Subsequently it has worked as well as a 134a replacement system usually works in the hottest summer on record. Last week I had my wheels aligned and noticed poor aircon and a very high idle when the...

My wife's new ML 320CDI arrived home this week after a wait of many months (Yes Des it really was ordered in September). Apparently Tuscalooosa shut down ML production for the whole of December which is why this one wasn't produced until January. It doesn't have the off-road pro pack with air...

As part of an ongoing program of improvement I am working through my 6.9's ball and rubber joints. The front and rear subframe rubbers are relatively inexpensive and I will probably import them over the year but wonder how easy they are to replace . I have all the necessary lifting gear but...

Diesel Motors want $90 a litre for 6.9 Diff oil and $32 for 250 mls. They apparently had 2 litre bottles that had been on display for 2 years and someone purchased them last week for $60 each. This stuff makes red-line oil look like the bargain of the century . Any suggestion on what to put...

The previous two owners of my car have used Red-Line oil which as I understand is an exotic ?Vegetable oil ?Synthetic. It runs beautifully on it and consumes no oil and produces no smoke hot or cold. Having removed the right hand cam cover it looks like it was only built yesterday - lovely and...

My 6.9 is largely "oil drip free" on the garage floor with the exception of a 5 cent piece sized drip of red Automatic trans fluid which appears during it's 5 to 7 day lay-over between drives. The automatic was serviced last year by "The Star Shop" in Perth with a filter and fluid change...

I finished my front suspension on the 6.9 today and one of the last things I discovered was a rub mark on the right front rubber hydraulic line. I have always thought my 6.9 was harder to park than my 450SEL as the steering lock was not as tight. My car hits the steering stop when turned to the...

Is the RHD 6.9 speedo cable different from the 450 cable - I have been told it is a unique cable I replaced my 450 cable a couple of years ago(Cost $87) due to wild fluctuations in the needle and now it is totally smooth and unfussed but my 6.9 cable is obviously not perfect and there are a few...

I am in the process of rebuilding my steering linkage and upper suspension arms/bushes and on re-fitting the idler arm (with a new kit) I noticed that when it was cycled to the position of left full lock it did not stop at the stop on the subframe but rested against the positive battery feed to...