Diesel (XUDT) Engine Servicing

I haven't owned a peugeot diesel but I understand that cooling system maintenance is important (flushing and fresh coolant at 50% mix every two years) to prevent corrosion/overheating which results in head gasket failure/warped head/damaged wet liner seals(?).

I've never found water in my diesel filter, but it's well worth changing it every year as a matter of course. Oh, and a clean air filter is vital on all diesels to prevent excess smoke and poor performance. Replace every 10,000 miles.

James of Sunderland

Yes, fresh coolant with 50% antifreeze in it is very important to prolong headgasket life on these engines. Change it every 18months- 2 years maxium. Refilling these so you dont airlock it is vital- you'll need the top half of a coke bottle with the threaded part rammed into the header tank to get enough of a "head" of water to push out the air from the system when you refill it. And open the 2 bleed screws in the pipe work too.

Tim..

I'd suggest change:

Coolant every 15,000 to 20,000 miles. cambelt every 40,000 miles. Oil every 6,000 miles. Air filter, annually. Fuel filter bi-annually. Glowplugs/injectors every 100,000 miles.

sPoNiX

Thanks to all, for the advice. Anyone with intimate knowledge of the engine (Tim?) care to describe the bleed screw locations for me? Re the air filter: is it necessary to replace it every 10000? The interval for this on my primera is 36000! I understand the importance of it on a Diesel, to maintain good airflow and therefore prevent rich running, but I can't see how it would get dirty any sooner than on a petrol?

No jobs required that wouldn't apply to a petrol engine service, then? Any tuning operations or are these best left to a specialist?

Cheers,

Stuart Sharp

Its been a while since I worked on one of these- but the one nipple is in the top hose that runs around the front of the engine by the injectors. I think the other is on the right side towards the bulkhead. A good look and feel along the length of the hoses should find em!

Re

snip.

the diesel runs unthrottled- so most of the time its consuming as much as as your primera would be if you drove around all the time at half throttle- probably 100mph in 5th!

When the turbo is at full song it would be consuming about 170% more air than the primera would be at full throttle (cos its forced aspiration)

So you can understand the huge amount more air that passes through the filter. I might whip out the filter at 10k compare it to a new one, if you think it might go abit more- have another look at 15k.

We have a Cav TD on the fleet- vauxhall says the filter will do 18,000miles. At each 9k oil change the filter is so black with dirt we have to change it, so I would say 10k is going to be about right on the PSA engine- even though its bigger than the Vx one.

Tim..

Thanks - just got a secondhand Haynes off eBay so should be OK with that, now.

Ah......I see. Never thought about it from the actual "volume of air processed" point of view.

Cheers - I'll have a look at the old one and change if in any doubt, as I expect a new one would be beneficial to the economy as well as the emissions.

Stuart Sharp

For Glowplugs read - replace as a set, only when one fails (for the rest are sure to follow).

/john

Thanks. At the moment, it starts first thing on a morning with about half a turn of the engine, so the heater plugs are obviously fine!

Stuart Sharp