See what happens when we put new fuel injectors in our 1975 Mercedes 280SL....

We sent the 6 fuel injectors in our 1975 R107 Mercedes 280SL off to Mr Injector in the UK to be professionally serviced. Mr Injector is probably the UK’s leading expert on petrol fuel injectors and his services are always in high demand. In our case, there was a 6 week waiting list...so don't expect to get your injectors back the next day! The service cost approx £50 per injector, and this included new filters, fuel hose, ferrules, pintle caps and injector clamp seals. You will also get a detailed break down of how each injector performed both before and after the service. While we were waiting for the injectors to come back we set about restoring the rest of the fuel delivery system. Was it all worth it?….you be the judge.
The Mercedes part number for the 6 'Mexican hat' style injector seals is A1160780473

[@TonyLiveTV]

Fantastic Mike. You beat me to the first start. Nice work my friend.

[@MikesMercsandothercars]

Thanks - that took me by surprise! I'm looking forward to your first start up. I'm guessing she'll run like a dream. Next up, Euro lights and bumpers and you'll have a $50k car....Mike

[@MJR67]

Congratulations, I bought new injectors for my 450slc. One of the hardest jobs removing 40 year old injectors as the bonnet angle, unlike the newer Mercs is quite low. I do like the new brake servo, I had mine redone too but now the rest of the engine bay just looks shabby. At that point I just decided to close the bonnet and move on. Great job, well done and many thanks for all your helpful videos.

[@MikesMercsandothercars]

Yes - I remember the job I had removing the injectors from my 450sl part car! It is so often the case that you refurb one thing and everything else looks rubbish....I keep thinking that I probably should have taken the engine out and repainted the engine bay....but there are only so many hours in the day. What did you pay for a new set of injectors I wonder? Mike

[@MJR67]

I got Bosch fuel injectors they were $28.5 each vs the Merc ones which were $52. Add in the nozzle holder at $1.25 and seal for the same amount. Be well and hopefully the rain will abate, but then it would not be an English summer :)

[@MikesMercsandothercars]

@@MJR67 Wow...that is a fantastic price for the fuel injectors. The ones for older D Jetronic cost over £100...if you can get them. Mike

[@scottitonline]

Amazing that she fired up after all these years. That's old mercs for you.

[@JustinSmith-ee9kp]

Lovely job as always Mike. Thanks for another great video.

[@MikesMercsandothercars]

Thanks - how is your car going? Mike

[@marcosortolani3639]

I think you did the right thing. Your injection nozzles are original.

[@MikesMercsandothercars]

Thanks for your comment. Mike

[@siamak1]

Great job! Soon I will began with mine. I have done all this before. Need only to do change the fuel pump to a correct 2bar one and check the Fuel Regulator. Your DIY coke bottle tester for the Fuel Regulator will be a great tool. Recently had an issue with misfiring with 97 E320 and suggested in the MB forums to use B12. It did fixed the problem under 8 miles of driving! Hopefully will fix any issues with the Fuel Regulator as you have shown in your video.

[@MikesMercsandothercars]

Thanks for your comment and good luck with your remaining work. You probably know all this already but:
1. The original fuel pump is almost identical to the one below:
www.torqen.uk/brands/datsun-240z-260z-280z-280zx-510/fuel/69954-electric-fuel-pump-fuel-injection-oem-280z-280zx-75-83-200-696.html
ua-cam.com/video/srvBSoYbUK8/v-deo.html
2. The original fuel pressure regulator is very similar to the 'Standard PR148'...although my experience thus far has not been that great:
ua-cam.com/video/wG4UtnAoYCs/v-deo.html
One subscriber mentioned that I should redo this test with fuel/Chemtool...which I will get round to doing at some stage.
Mike

[@siamak1]

@@MikesMercsandothercars I think, I commented in one of the other of your videos, that I was lucky enough to find a used fuel pump at very reasonable price.Also, my original pump is some where in my garage and if I remember correctly, it did leak and most probably needs a new the O-ring. If I could only find a new replacement O-ring. Hopefully my regulator if any, may need only cleaning. Here in San Francisco area we have earthquakes and fires but climate a bit kinder to these old cars. But thank you for the links to pump and regulators. However, I like your idea of having permanently installing a fuel gauge. A short video with your usual links to the items for it would be of a great help. Thank you Mike, your videos are very inspiring and encouraging to leave my computer and do the actual repairs. I managed to fix and pass smog on my daily driver 97 E320, and soon will tackle the rear wheel bearing and possible ,hope not the timing chain in my 84 300TDT. Then of course the 450SL.
Siamak

[@MikesMercsandothercars]

@@siamak1 I have one of those fuel pump O rings. I think I mention at the end of the fuel pump video what size it is and where I got it (ebay). Good luck with the repairs. Mike

[@siamak1]

@@MikesMercsandothercars Thanks. I could not find your eBay seller. But based on the size of 2mmx33mm id, I found a seller from China. The bigger task now would be actually finding the pump in my garage. haha

[@christophero4489]

Nice work 👍

[@MikesMercsandothercars]

Thanks - hopefully we will soon be ready to connect up the brakes and drive shaft and get this car moving for the first time in decades. Mike

[@norcalcasey14]

Mike, have you done a video of a valve adjustment on the m110?
I need to do it on my 280sl euro

[@MikesMercsandothercars]

Hi - no not yet. What year is your 280SL? Mike