300E Fuel Pump Replacement How To 1989 Mercedes-Benz

If your 1989 Mercedes-Benz 300E is experiencing sputtering or stalling issues, it could be a problem with the fuel pumps. In this video, I show you how to replace the fuel pumps on a W124 300E, a process that is similar for other models from 1985 to 1994. I cover all the essential steps, including how to diagnose the problem (hint: try tapping on the fuel pumps with a hammer), how to disconnect the battery safely, and how to remove and install the new fuel pumps. If you're handy with car repairs and want to save money by doing it yourself, this is a video you won't want to miss!

[@tonyreyes9969]

By the way the item near the fuel filter is called fuel accumulator and not a pressure regulator. On this particular model the pressure regulator is mounted near the mixture control unit. The function of the fuel accumulator is to maintain the pressure in the fuel system for a certain period of time after the engine has been switched off and when the engine is running it serves to deaden the noise of the electric fuel pump. Thanks for your time sharing your experienced and all the best for your future videos.

[@shaazy]

Absolutely spot on. I had a strange issue with my m103, don't know what the previous owner did there. My accumulator was entirely missing from the car, and the fuel pumps were quite buzzy but the car was otherwise starting and running fine. So I added the accumulator and lines back, and the buzz actually got louder. I was expecting the buzz to be reduced, but here we are. Living with the noise for now.

[@jonathanloza1062]

Thanks a Ton as i sit in my lovely back yard , was picking some fruits and veggies from my garden. Thank you 💪😎 cant wait to get to it !!

[@marcusrowe9258]

Thank you very much for the excellent video

[@homermago100]

I just picked one up for a 100 bucks from someone who didn’t want to brother with it cause they gave it to him. It’s in great shape garage kept but been sitting so probably gonna swap these out good to know it’s so easy

[@tdkkid]

Great job on the video and I am change out my W124 - E420 with a great success. Thank you

[@horacesamuels2052]

One blood my brother .this video help me out keep up the good work god bless you.

[@MapulaSegooa-rx5fk]

Help with fuel return system for M123

[@ylberblakaj3512]

hi I have a mercedes sl 300 cab model year 1993. my question is, when the car is cold it starts, when it is warm it cannot be started until it has been sitting for a few hours, then you can start it again. can you the error would be very grateful🙏

[@kurtisjohnson3751]

Thank god for you helping

[@frankc5058]

Great Video! How do you know/how can you identify which fuel pump needs to be replaced? Have a 300E Mercedes 1988 model and am in the middle of trying to identify which pump to order and change. Cheers!

[@runelarsen5769]

Good video. Was there no damage at the fuel hose after you clamp it?

[@dragonfarts4329]

I forgot to mark the wires going to the fuel pumps, wires colors are the same? will it matter if I hook them up differently?? Also, need copper crush washers, pumps came without them are they all the same size? and what is the size or part number?? need the 4 rubber boots as well, any leads and help, much appreciated !!

[@las10dedavidroberto14]

Hello. I need to get all 3 parts you show in the video( pump, filter, regulator) for my Mercedes 260E, WDB124026. Any ideas where I can buy them? Thanks

[@sharonprry4939]

I was thinking about purchasing one of these with 200k are these cars terribly expensive to maintain, also can they be a daily driver?

[@shaazy]

Great vid. I wanted to ask, there's a constant buzzing sound after replacing my fuel pump from the rear while the engine is running. Do you get that too?

[@colegg8029]

That's the sound of the fuel pump running

[@shaazy]

@@colegg8029 Is the sound normal for 300Es? Car is sluggish at best. 0-60 is in 13-14 seconds.

[@mattkuhar9743]

How do you know WHICH fuel pump is the one going out? Im having a stumble and no start condition, but starts 2nd try every time

[@mattkuhar9743]

Nick Robertson thanks! It does start fine after priming a few times, thats what lead me to the pump (i had thought there was only one!) being the issue

[@dikranberg7600]

Ok😊🥰

[@metinkucukev4942]

Alt yazılarda TÜRKÇE neden yok, Türkiye den takip ediyorum Sizi,TÜRKÇE alt yazı koyabilirmisiniz

[@Drivethebeat]

Where are you located?

[@fecklarjenkins2549]

Gas or diesel?

[@EricK-ik6rb]

Are these cars more problematic than anything else? I l am trying to talk myself out of an 87,87 model 300e.. they are calling my name.. but I am a little scared to pull the trigger. I am used to driving Volvo's. Thanks in advance

[@DIYBiotech]

They're garbage in my experience but they sell for really cheap (this one lured me in)

[@EricK-ik6rb]

@@DIYBiotech thanks I needed to hear that.