c5 110 hid oil changing

boristhespie · Post by **boristhespie** » 26 Jun 2009, 10:31

How do you change the oil/ Do you need to take of undertray. I can't see a plug.

Also is the oil filter hand tightened and therefore easy to get off?

Post by **Paul-R** » 26 Jun 2009, 11:09

Unless you are going to use one of those machines that sucks the oil out of the dipstick tube then, yes the undertray has to come off.

It's held in place by a number of screws and clips. They look like screw heads but they're only 1/4 turn to release type fixings. When they are all released slide the tray a bit further backwards, this will allow you to bring the front end down below the bumper and you can then pull it forwards.

the drain plug is at the rear of the sump and has both internal and external hex heads so you can use a spanner (forget exactly which size) or an 8mm Allen key (my preferred method).

When you put the plug back in it's advisable to use a new washer as they tend to leak - or at least mine does!

The filter is put on hand tight but you'll be lucky to get it off by hand without shredding your knuckles on the radiator. It'll also drip oil down over the back of the compressor and/or alternator so make sure these are wiped properly afterwards.

Don't forget to rub a smear of oil onto the new filter sealing ring and don't go berserk tightening it up. Firm hand tight is all that's needed.

Finally, as you can't fill the filter with oil before tightening up, start the engine and let it tick over for a few seconds. DON'T rev it until well after the oil light has gone out.

boristhespie · Post by **boristhespie** » 26 Jun 2009, 20:18

Thank you. Now the fuel filter and housing. How do I do that. Just unclip and put new one in? Anything to think of.

Post by **Paul-R** » 27 Jun 2009, 20:09

Myglaren gives a good account in his post about 2/3 way down the second page of the other thread you started http://www.frenchcarforum.co.uk/forum/v ... c&start=15 , about 2/3 way down the third page http://www.frenchcarforum.co.uk/forum/v ... c&start=30 and following.

Taking the fuel hoses off the filter housing is the most difficult part I reckon. You have to push the little tongue thing in at the end, this releases the hose(s) which then just pull(s) off the housing.

Whether you change just the filter element of the complete assembly is up to you.

Post by **myglaren** » 27 Jun 2009, 20:24

Thanks Paul. I haven't ever removed my filter so couldn't have said what the procedure was but Mr. Spie is having various problems indicative of possible lift pump deterioration.

The recommendation to take the expensive rout and replace the filter and housing as a whole was to preclude any swarf that may have landed in the filter/housing from being disturbed and finding it's way into the deisel pump - certain death for it and far more costly than a filter housing, which can be examined for swarf, cleaned and replaced on the next filter change.

Post by **Paul-R** » 27 Jun 2009, 21:04

Ah, I see. You keep it as a spare for next time. I thought you binned it completely.

Just to clarify for boristhespie (boris the spie?) (boris thespie??). If you're only going to change the element, take off the three hoses and one electrical connector from the top. You are then in a position to carefully twist the top off.

If you're unlucky (like me) and have the type with a serrated edge you'll have to use something like an oil filter remover band roound it to twist it off. The other type has a nice hexagon cast into the top (like my Xsara) which needs a 22mm (from memory) spanner to fit.

If you're taking the complete filter housing off (which I haven't done) I think there are some more hoses at the bottom of the housing to remove first and then a couple of screws holding it onto the block.

Post by **myglaren** » 27 Jun 2009, 21:30

I've just done my son's 306 service and if only it were as simple as that (once I had correctly identified the filter housing, with Jim's help

)
Two minute job! (the filter, that is).

boristhespie · Post by **boristhespie** » 28 Jun 2009, 16:06

Have bee told to replace whole unit because of swarf posibility. So it is simpler. Unclipping and then just replacing. How do I unclip incidentally, has a look but can't see how these pipes attach and detach.

boristhespie · Post by **boristhespie** » 30 Jun 2009, 11:52

OIL TYPE

Mines is a HDi110BHP c5 LX.

I used 5-40w before however all the stuff on sale at the moment is 10-40w oil. The handbook says don;t use if you have a particle filter. Does my car have a particle filter and also what is the difference? Is 5-40 lighter and is it better?

Post by **Paul-R** » 30 Jun 2009, 12:07

Your car doesn't have a particle filter (also known as a FAP). Not sure why the viscosity should be a no-no for a FAP but you certainly have to be careful on the choice of oil as the wrong type can cause the FAP to clog up quickly.

Anyway you don't have one so it doesn't matter.

5W-40 is thinner cold than 10W-40 so it should give easier starting when cold (less drag on the engine internals by the oil). BUT the oil has to be better quality to get away with this without prematurely wearing the engine out.

Is it better? Dunno - it depends on how much you're willing to pay for your oil. Your choice I suppose!

boristhespie · Post by **boristhespie** » 30 Jun 2009, 12:26

http://www.eurocarparts.com/ecp/c/Citro ... 233c1bd7d7

Would this be okay. Recommended by eurocarparts for my c5. it is 81kw rather than the lower 65kw which I assume doesn't matter.

Never heard of Carlube but it is fully synthetic which appeals.

Also see Tescos fully synthetic is on sale half price. I know Halfords is made by comma who makes Tescos.

Should I just go for castrol edge? comma Diesel PD 5w-40????

MikeT · Post by **MikeT** » 30 Jun 2009, 16:50

boristhespie wrote:Never heard of Carlube but it is fully synthetic which appeals.

Unfortunately, it's probably not synthetic at all but hydrocracked mineral oil. Some judge decided that once a mineral oil has been played about with enough it's right to call it synthetic.

I would expect a true Fully Synthetic oil to cost three times as much.

boristhespie · Post by **boristhespie** » 30 Jun 2009, 17:37

What does anyone else use and recommend?

Post by **myglaren** » 30 Jun 2009, 17:51

I'm using Delco 5W40 synthetic at around £25/5L.

Post by **Paul-R** » 30 Jun 2009, 18:11

Total Activa 7000 10W40 synthetic. Bought it in France at Leclerc's!