CLK270 cdi SERVICING

[HelpThisDude]

The air filter is to the left of the engine (looking in from the front), A black rectangular cover with 3 torque screws holding it in place. For further identification, it will have a circular 'gauge' on the cover. This is the cover to remove to find the air filter. Replacement is simple, it will be clear once the air box cover is removed.
Fuel filter: The pipes have a hose clip, they will need to be slackened off. Just work clean, and as with the air filter, once you have removed the right hand side cover and locate the filter, it will all come clear

 

[mercdriver25]

The air filter is to the left of the engine (looking in from the front), A black rectangular cover with 3 torque screws holding it in place. For further identification, it will have a circular 'gauge' on the cover. This is the cover to remove to find the air filter. Replacement is simple, it will be clear once the air box cover is removed.
Fuel filter: The pipes have a hose clip, they will need to be slackened off. Just work clean, and as with the air filter, once you have removed the right hand side cover and locate the filter, it will all come clear

Cheers, thats great. Have scheduled this for tomorrow, so will post how I get on. Should be fine, fingers crossed.

The oil change is done, and fuel/air filter will be done tomorrow (hopefully).

Is there anything else that needs to be done to keep the car in tipshop shape? In view of the credit crunch (and the high mileage of my car), I have decided to do all the minor things myself, and get a major service done every 3 years or so..

 

[HelpThisDude]

Checks I do regularly, are all the things i'm sure you have already thought of. Just have a general look over all the 'bits'. Things like rubber hoses can start to degrade, the condition of the aux belt. Oil or water leaks. Security of all the bolted on parts. Fuel rail/power steering leaks. Brake fluid levels etc... A week ago I found an engine cover worked loose, and with engine vibrations, had eaten through almost all the rubber fuel line. A phone call in the rain to the RAC waiting to happen.
It would also be advisable to check tire pressures, suspension and steering components and bushes, arms, links while the lower covers are off. Check the wheels for wheel bearing play while the wheels are off the ground.

The two services are an A and B. One is just the oil and filter, the other is where the air/fuel/oil and pollen filter gets done.

I do alot more miles then your self and service every few months. So I will try do most bits myself or I would be broke.
This forum is excellent for advice and you will find all sorts of posts by me! Annoyingly asking every silly question under the sun.

Just be aware, small jobs can suddenly become huge ones... do a search on here when planning on replacing bits, Sometimes it is worth the cost to get someone else to do it.

Good luck with all the maintenance buddy.

 

[LYNALL]

Petrol a doddle to do clamp main pipe loosen clips watch fuel pressure force out the fuel in the line replace the filter, or alternatively leave car overnight and do it the next day and there will be ZERO fuel pressure so long as you dont turn the ign on!

Diesel guessing in tank electric low pressure pump fitted? in which case fit the new filter leaving off the filter to engine pipe and push a long piece of hose onto the filter stub, route this pipe into a can/bottle etc turn ign on and wait a few seconds when pump stop do it again and again until fuel comes out then refit pipes to filter and start engine.



Lynall

 

[mercdriver25]

Hi guys,

Just to update...

The air filter was a doddle to replace...no probs whatsoever, and took like 5 minutes..

However, the fuel filter was a bit more challenging (not that I mind that!). I found that actually the access to the bolt that secures the canister was quite difficult, but eventually loosened it sufficiently..

The 2 tubes that plug into the top were also quite hard to get off. The central one has some sort of weird plastic locking mechanism which presumably secures it in place tightly - I eventually got it off, albeit without any efficiency and I think I damaged the black plastic ring-link structure that sits on the flange of the canister. Can I ask (for next time!), how are you supposed to take this off properly? There is also a white plastic U-shaped pin which is held securely within the mechanism..

And the other thing, despite filling the fuel filter with diesel, the car still needed cranking for about 30 sec.

Anyway, took if for a spin, and all is well. In fact it seems to be driving really well, with smooth changes (or is this just psychological??), and even the idle seems to be smoother....

Cheers

 

[HelpThisDude]

The CDi's, (as it was explained to me), have no electric fuel pump. The item in the tank called a 'pump' uses the fuel return pressure to operate. That is why it takes so long to start after fuel filter change. The main pump on the front of the engine has to pull the fuel out of the filter and into the engine.

The fuel hose clip plastic U things (technical terms) either pull up, or push down. I forget.... Hopefull it will come back to me next week as I have to do mine.

 

[HelpThisDude]

I must have been having flash backs to my 406HDi....plastic clips? Sorry I'll go sit in the naughty corner.

 

[Snowtiger]

W209 - CLK Fuel filter / Pump Isues

The CDi's, (as it was explained to me), have no electric fuel pump. The item in the tank called a 'pump' uses the fuel return pressure to operate. That is why it takes so long to start after fuel filter change. The main pump on the front of the engine has to pull the fuel out of the filter and into the engine.

The fuel hose clip plastic U things (technical terms) either pull up, or push down. I forget.... Hopefull it will come back to me next week as I have to do mine.

Hi help this dude,

I was after some help, I have a CLK 270 (2003) 120K of effortless motoring and following a house move taken the car to a local garage for a service.... basics oil and filters and MOT as it was approx 300miles overdue on the service clock.

Anyways they gave me the car running and it cut out after 15miles and just will not start. I have had it towed to a indie that I have now managed to locate in my local area yesterday. Appears that there is no fuel pressure at the rail any thoughts?

I am just disappointed that having given the car in for a service to a new garage and I am given the car back non functional and they are not even embarassed by their inability to start the car. They have immediately pointed to the fuel pump. I am reluctant to change the fuel hence moving the car to indie for a second opinion. Still waiting for him to get back to me.

Any thoughts welcome.

Regards,
Snowtiger

 

[Snowtiger]

W209 - CLK Fuel filter / Pump Isues

The CDi's, (as it was explained to me), have no electric fuel pump. The item in the tank called a 'pump' uses the fuel return pressure to operate. That is why it takes so long to start after fuel filter change. The main pump on the front of the engine has to pull the fuel out of the filter and into the engine.

The fuel hose clip plastic U things (technical terms) either pull up, or push down. I forget.... Hopefull it will come back to me next week as I have to do mine.

Hi help this dude,

I was after some help, I have a CLK 270 (2003) 120K of effortless motoring and following a house move taken the car to a local garage for a service.... basics oil and filters and MOT as it was approx 300miles overdue on the service clock.

Anyways they gave me the car running and it cut out after 15miles and just will not start. I have had it towed to a indie that I have now managed to locate in my local area yesterday. Appears that there is no fuel pressure at the rail any thoughts?

I am just disappointed that having given the car in for a service to a new garage and I am given the car back non functional and they are not even embarassed by their inability to start the car. They have immediately pointed to the fuel pump. I am reluctant to change the fuel hence moving the car to indie for a second opinion. Still waiting for him to get back to me.

Any thoughts welcome.

Regards,
Snowtiger

 

[Snowtiger]

W209 - CLK Fuel filter / Pump Isues

The CDi's, (as it was explained to me), have no electric fuel pump. The item in the tank called a 'pump' uses the fuel return pressure to operate. That is why it takes so long to start after fuel filter change. The main pump on the front of the engine has to pull the fuel out of the filter and into the engine.

The fuel hose clip plastic U things (technical terms) either pull up, or push down. I forget.... Hopefull it will come back to me next week as I have to do mine.

Hi help this dude,

I was after some help, I have a CLK 270 (2003) 120K of effortless motoring and following a house move taken the car to a local garage for a service.... basics oil and filters and MOT as it was approx 300miles overdue on the service clock.

Anyways they gave me the car running and it cut out after 15miles and just will not start. I have had it towed to a indie that I have now managed to locate in my local area yesterday. Appears that there is no fuel pressure at the rail any thoughts?

I am just disappointed that having given the car in for a service to a new garage and I am given the car back non functional and they are not even embarassed by their inability to start the car. They have immediately pointed to the fuel pump. I am reluctant to change the fuel hence moving the car to indie for a second opinion. Still waiting for him to get back to me.

Any thoughts welcome.

Regards,
Snowtiger