fuel filter/pump rubber hoses




Ever since i changed my fuel filter the car has been weird on startup. It would hesitate for a second and it feels like i go through fuel twice as fast than i normally would. I have a feeling some of the hoses cracked while i was moving them around trying to get them off and on. First day after i replaced the filter the fuel dripped a bit in the back but i havent seen it after so i left it alone
If someone could point me towards a diagram or part numbers to all replaceable hoses down there i would really appreciate it
Hose between the fuel pump and fuel filter A208 476 2126
Fuel tank to inlet of fuel pump A202 470 2475
Fuel filter to main line to engine A230 476 8726 (230mm, may be sold by meter)
Fuel filter return line to tank A208 476 1426
Make sure that if you aren't using the genuine "click" clamps that you are using "EFI' hose clamps that have a solid band around the hose. see pic, don't you a hose clamp that looks like the one on the right.
I would also suggest checking the rubber return hose that feeds into the Left hand fuel sender, I have seen a few of these leak.
I would also check the breather hose leading up to the filler neck (remove RHR wheel and inner wheel arch cover. I have had these perish on both of my W202's, whilst they will only leak liquid fuel with a very full tank, they will make you loose fuel without knowing where it went on really hot days.





I went to the dealer yesterday and ordered the hose that connects the pump and the filter. Ill start with that and see how it goes.
Ill save the info you provided
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ordered mahle fuel, also new bosch sparks, bosch wires and 2 mahle oil filters from FCP with lifetime warranty on all parts. they have a christmas sale now so their prices are close to autohauz but you also get the free lifetime replacement

do you think ngk sparks are so much better? i just went oem but can probably change order.




Sure, NGK is so great, MB & many companies have an agreement with NGK,,
i'm using NGK's since around (8) years, with fully satisfied..

;ZAYED;




doesnt really matter, i have lifetime warranty on the plugs so even if they only last as many miles as i guess
https://au.bosch-automotive-shop.com...3-e5c845aee94b
Does anyone know the exact size clamps I should be using?
From tank to pump the outside diameter of the line measures about 1 inch when I eyeball it with a tape measure.
The others are about 0.6 inch outside diameter.
Does that sound right?
Any links on the proper clamps would be amazing. I had a bunch of clamps lying around that I have used in the mean time but they are the ones that Ausmbtech says not to use in the photo above so I would like to use whatever is absolutely best to avoid future issues.




Does anyone know the exact size clamps I should be using?
From tank to pump the outside diameter of the line measures about 1 inch when I eyeball it with a tape measure.
The others are about 0.6 inch outside diameter.
Does that sound right?
Any links on the proper clamps would be amazing. I had a bunch of clamps lying around that I have used in the mean time but they are the ones that Ausmbtech says not to use in the photo above so I would like to use whatever is absolutely best to avoid future issues.
FG 202.033 - FUEL PUMP PACKAGE > Mercedes EPC Online > nemigaparts.com
Last edited by DRBC43AMG; Jan 30, 2025 at 05:03 AM. Reason: Completed post




Looked around the pages for the C43 aka 202.033 on that site but didn't find a wiring diagram as one knows them. It does however give all the different electrical harnesses with the electrical parts that are attached to them. Happy hunting.





