W126 Climate control woes

I’ve been fighting with the W126 Climate Control system for the last few months – and it’s been winning. When I purchased the car in November last year, it was a very hot day and the A/C worked great. It had a new radiator, so I took the evidence of leaking coolant to be history […]

300SE poor hot starts

The 300SE has been suffering from poor hot starts. It required a lot of cranking before it fired. On a K-Jet car, this is normally caused by a faulty fuel accumulator. From what I understand it’s the job of the accumulator to hold fuel pressure after the car is switched off. I also planned to […]

My Mercedes Collection

My Mercedes collection after giving them a quick wash. A representative from the 60s, 70s and 80s.

300SE head gasket – worth fixing?

Recently on the 300SE I had to make a decision if I would fix the head gasket or junk the car. To do the repair right was going to cost pretty much what I paid for the car. I had also spent pretty decent money doing the water pump only a few months before. To […]

Further 300SE A/C Troubleshooting

Previously, I had identified that the cause of my A/C problems was the fuse blowing. I have been narrowing down the problem more and more to the compressor clutch. Therefore, I wanted to eliminate everything else as the compressor is every expensive and beyond my skillset. I had already unplugged two other components that are […]

300SE stumble at idle

The 300SE had a severe stumble at idle. It only occurred when the engine was hot. It never stalled the engine, but felt like it was about to. There was also a miss at takeoff. My initial thought was to check the distributor cap and rotor. However, on further examination, you could see sparking around […]

W126 Ignition tumbler replacement

When new, a W126 Mercedes would have come with four keys:

Two square headed master keys. One round headed valet keys. A flat ‘wallet’ key.

The master keys were designed for everyday use and opened all locks on the car: doors, ignition, glove box and boot. The valet key is similar, but does not open […]

Troubleshooting W126 Climate Control

When I purchased my 300SE, the A/C worked well. I assume the overall Climate Control system did too. I never did test anything more than max A/C as the weather was very hot. Everything seemed fine, except for the little aspirator fan which was noisy. Unfortunately 3 weeks after purchase, the A/C stopped working. I […]

W126 Odometer Repair

My ‘new’ 300SE suffered from a common problem with Mercedes of that era, a non functional odometer. The mechanical odometer is driven by a small electric motor instead of a traditional speedometer cable and associated gears. This is because the speedometer is electric yet the odometer is mechanical. This combination was common in the late […]

The 300SE strikes back

My ownership of the 300SE had been off to a good start until 3 issues reared their ugly head in the last couple of days.

As outlined in the last post, the first issue was the A/C stopped blowing cold. I already knew I had to do a few things for the climate control – […]