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Thanks guys, happy now that I've bottomed out the obvious options and won’t throw parts at it any longer! Lots of threads on here with similar issues and seemingly no common solution, so off to the pro it goes!

Having just fixed my failed fuel pump I have an usual problem with my radiator fan. A bout ten minutes after I drive then lock the car the radiator fan starts to run flat-out. Turning the key to position two ignition stops it, but when the key comes out it starts spinning again and I have to...

Hi Ian. My procedure was: Disconnect battery (and leave bonnet ajar!) Open both doors wide Lift up small rear base seat section behind driver / on offside Remove 8mm bolts and lift up the circular black cover Paint/marker pen an alignment mark for the pump to tank orientation so things go back...

Thanks guys, Ian, I’ve had the same metal filter on my parts shelf for years as ECP listed it, but I could never find a resource or physically see where to fit it! I think you probably could replace the internal sock or the pump without this carnage, but not easily and I personally wouldn't...

I’ve looked all over and can’t find one…. back to conflicting reports on if/where fuel filters live on this model year. Am not sure whether I will drain the tank and clean/empty it or just put the new pump in. Looks a bit murky so I might siphon it out and get a towel into the bottom to mop up...

So…. I’m not very patient. Is this the only filter in the system? If the dark sections are from dirt then I can imagine this was causing a lot of additional load. I gave the pump 12V before I smashed it to bits. It was dead, so I’ll order a new one now. Can anyone confirm that this is...

So, with a short pry-bar and hammer I was comfortably able to remove the retaining hoops. Battery terminal disconnected! Don’t remove the near-side one and unpack everything just to realise it’s the fuel sender and the fuel pump is on the off-side. That would be stupid…… Have left it to sit...

I had assumed you could just gently knock those collars around with a screwdriver and hammer? If I can I’ll get the pump out today and post how I did it and what it looks like

Merc parts desk quoted me that one - I’ll pull whatever’s in the tank and check. Never known so much confusion over what pump and filter are installed on a car before - they didn’t even know, but guessed it was integrated because there was no separate filter listed. A filter-only change doesn’t...

The car’s done 145k and there’s no paperwork for anything in the fuel system ever having been replaced. I’ll put a new pump in and if the filter isn’t integrated I’ll find and change that too. I have a part number of A209 470 0294. Fingers crossed that solves it.

VIN begins WDB209 356 2F if that helps locate the fuel filter?

Thanks everyone - it wasn’t STAR but the recovery guy had a top-end scanner and couldn’t see errors on anything. No lights on the dash either. No pressure at the fuel rail but there is 12V at the fuel pump connection so I think this means fuse/relay are ok. Can I assume my issue is between the...

Thanks for your reply. Tach doesn’t seem to be bouncing, however it starts right up with a bit of fuel poured into it. Would the ECU not withhold spark too if it were being preventing from running due to a sensor/computer issue? I’ll have a good check over of the earth points when it’s light...

Poured fuel into the intake past the MAF and she runs. Pump and filter test next I think?

Hi all, it’s been years since I was on the forum, however I’ve got an issue I just can’t solve and hoped I might find the answer here. I’ve owned my ‘05 CLK350 for about eight years and it’s been very reliable… although its only covered 34k in that time. On a few journeys some months back...

Thanks Is this system instead of a PCV valve, or in addition to it?

Thanks guys, Changed the coolant recently. What came out was really clean and clear plus the temperature is always stable. Is the PCV easy to check? Have pulled them and rattled / checked for vacuum on other cars but can’t find anything going into the crankcase? Is it worth just changing the...

Thanks for the comments guys, it’s definitely what’s leaking the oil as it’s the highest point at the top of the oil stains. Have removed and re-sealed again today so hopefully will see the problem solved. Started the car and revved it a bit too, dipstick stayed where it was. Went for a drive...

Has anybody experienced this problem? Which sealant would be best for a plastic/metal contact to contain oil?

Hi everyone, it’s been a while since i’ve posted but hoping someone can help. I’ve got an oil leak on the top of my engine. Thing the part is called the oil evaporator? It’s the black plastic piece bottom left of the picture. I’ve had it off and re-sealed it a number of times but can’t stop...