Tagged: 1977 450SLC

W107 windscreen washer pump 0

W107 windscreen washer pump

The windscreen washer has not been working on my 450SLC for a couple of months.    The wipers started up, but no water squirted on the windscreen.   On quick inspection, I assumed it was the pump as it was rather rusty.   The W107 windscreen washer pump is a poor design in my view.   It appears that the motor is below where the water is...

Mounting NSW Historic plates 7

Mounting NSW Historic plates

NSW has a great historic registration system.   It allows for classics to be used for 60 days on a logbook for a drastically reduced fee.   For unknown reasons the plates issued are tiny plates with purple numerals.   The plates are so small they are not wide enough for the mounting holes on most cars.   As these plates don’t end up...

450SLC timing chain check 2

450SLC timing chain check

The Achilles heel of M116 and M117 engined cars is the timing chain.    As the engine is an overhead valve engine, the chain is used to make sure the valves open and close when they should.   On the V8 the chain needs to go to both heads and down to the crankshaft and so it is very long.    This exacerbates the...

450SLC Repaint completed 0

450SLC Repaint completed

The 450SLC is complete and I picked it up over the weekend.    What a difference from the faded original paint at the front of the car – it is like having a new one. The respray took place over three weeks (Week 1, Week 2, Week 3).  In addition, rust was cut out, and the air cleaner was re-painted.

450SLC Repaint part 3 1

450SLC Repaint part 3

The 450SLC is now completed.   Last week the actual spraying was done, and this week the car was polished, re-assembled and checked.    I do my final inspection and collect the car this weekend. In addition to having the car re-sprayed, I had the air cleaner resprayed in black and the chrome arch covers removed as they can attract rust.    The brackets that...

450SLC Repaint part 2 2

450SLC Repaint part 2

Another week has gone by at the panel beaters on the 450SLC and the car is getting much closer to completion.  Last week was mostly rust repair and preparation, this week completed the preparation and started the actual re-spray. Where components could be reasonably removed, they were to ensure that they were painted correctly.   The 450SLC is 906G which is Grey/Blue metallic.  ...

450SLC Repaint part 1 2

450SLC Repaint part 1

My 450SLC has now spent a week at the panel beaters having rust removed and being prepared for paint. The starting point was the chassis rail on the drivers side.  This is as very common W107 rust spot. This was welded and then painted. From there, work moved to the boot where both sides were rusting and there was some rust starting in the...

450SLC Rust 1

450SLC Rust

The big Achilles heel in the R/C107 chassis is its propensity to rust.   They are pretty much bullet proof mechanically, but the rust proofing from the factory was poor and there are a lot of areas where they can and do rust, even in climates such as Australia that are not prone to it.    Once the rust gets to a point, the...

722.0 B3 (reverse) band adjustment 0

722.0 B3 (reverse) band adjustment

My 450SLC was starting to slip a little in reverse, especially under load (e.g. up a hill).   The transmission was shifting gears very well other than this one area, and the fluid looked clean and at the right level. The 450SLC uses the 722.0 transmission, which unlike the later models has an adjustable B3 band (which is used for engaging reverse).   This...

450SLC door striker replacement 0

450SLC door striker replacement

The drivers door on the 450SLC had become harder and harder to close properly over the past year or so.   It normally took a couple of tries before it would latch correctly.   I therefore decided to try replacing the door striker, which do wear out over time.   The part number of the new striker was 115 720 06 04. As can...

450SLC Transmission linkage 0

450SLC Transmission linkage

The 450SLC’s gear stick had become more and more floppy, and given my experience with the 250SE, I thought it was better to take a look and potentially fix the issue than have it totally fail on me.  The gear selector bushings are a common issue on these cars. Looking under the car, by 1977, Mercedes had gone to a better design.   As...

Old Benz as a daily driver? 0

Old Benz as a daily driver?

There are plenty of interesting classic cars out there that I are fun to own, and drive on the weekend.   My E-Type is one of those for example.   Not so many can be realistically driven every day though.   In my opinion, the Mercedes-Benz range from the 60s is one of those who can. I just saw an interesting story of a...

New Beru HT leads for the 450SLC 0

New Beru HT leads for the 450SLC

The 450SLC had been idling rather roughly and stumbling when taking off from stop.  This got a bit better when I changed the coil, cap and rotor – and at that time I noticed that the leads were not in great shape, especially the one to the coil. There are a lot of leads for sale, many of them inferior quality.   The Beru HT...

Keeping the 450SLC cool in summer with HyChill 0

Keeping the 450SLC cool in summer with HyChill

Lets face it, R134A is rubbish when it comes to cooling older cars.    It is significantly less efficient than R12.  Systems that are not designed for it struggle to keep the car tepid in the Australian summer. Added to that, the air conditioning on the 107 models from Mercedes was never their strong point either, so when you couple a marginal system, that...

New coil, cap and rotor bring the SLC back to life 1

New coil, cap and rotor bring the SLC back to life

As outlined in a previous post, the 450SLC broke down a week and a half ago and the NRMA helped me diagnose it down to a bad coil.   Yesterday, my new coil, cap and rotor arrived so I got down to getting fitting them t the car. A quick test of the new coil had the car roaring back to life, so I...

After 10 years of ownership, the SLC finally leaves me stranded 1

After 10 years of ownership, the SLC finally leaves me stranded

During the 10 years and around 40,000 kms I’ve owned the 450SLC, it’s proven to be extremely reliable.   Sure i’ve had a flat battery once a couple of times, and a fuel pump that would cause the engine to occasionally stall until it was replaced, but it has never left me stranded, until this weekend. About 100 meters from my driveway, the engine...

450SLC gets a new blower 1

450SLC gets a new blower

I’ve had issues with the blower on the 450SLC for a few years now.   I would get all sorts of noise and irregular operation from it.     Unlike in some models, the blower is actually pretty easy to get to in the 450SLC, but the problem was new blowers were very expensive (I was seeing them for over $1,200) and used units...

SLC Heater trims 0

SLC Heater trims

The plastic trims around the heater controls in the SLC have been broken since I got the car.   I noticed when buying another part that new trims were available and they were a reasonable price.   So I purchased them – although it turns out the right hand one was out of stock so I got a refund on it. Still, replacing only...

Classic Jalopy