It leads to an evap (carbon) cannister

Thanks for that. Do you also know what connects to that hole there?

1/

The electric pre-heater (on a mk3 Mondeo ) is alloy, it is a straght "torpedo"-like tube with 3 electrical connectors (for the 3 heaters) it connects between the thermostat 19mm "heater" outlet and the cabin heater, it is located at the front of the floorpan/ scuttle (just about where the drivers' feet are but on the other side of the bulkhead) it is visible with the engine undertray fitted, from under the car.

it helps to warm the water/ coolant before it goes to the cabin heater

Some Mk3s had deisel- burning heaters instead (for cold climates - eg for Scandanavian countries etc) the mk3s always had a over- cooling/ not producing enough heat problem - thats why iv'e fitted an (electronically controlled) electric waterpump to mine (and for other reasons) - ive removed my heater and some of the pipes as part of the conversion (don't need it because the electric waterpump only comes on when the engine is warmed up, and it warms up much quicker )

2/

The charcoal (carbon) evaporation canisters are fitted to petrol cars to prevent (or safely filter) petol/ fumes/ gasses escaping into the atmosphere from petol tanks on petrol cars and still allow the tanks to be vented (its another "emmisions" thing)

Its not really nessesary on a diesel (i think mine has a sealed tank with an "expansion chamber" built in to the top of the tank) but thats never stopped them fitting parts designed for petrol- engined cars onto deisels, that should'nt really be there (eg - EGR valves/ systems)

3/

I think it is the oil cooler/ seperator or an associated component

On the mk3 Mondeo diesel engine, there is a watercooled oil cooler on the bottom/ front of the engine, a small thermostat comes out of the side of the waterpump where it feeds a coolant hose then goes to the cooler/ seperator, there is another coolant hose that returns to the radiator

it is (part of) an oll cooler that uses the engines main coolant/ radiator, controlled by its own thermostat (not like a seperate oil cooler radiator like the ones on a race/ performance car )

so water (coolant) and oil runs through it - there should be a water coolant/ in/out and an oil in/out

Do i get a prize if im right? :)

1/

The electric pre-heater (on a mk3 Mondeo ) is alloy, it is a straght "torpedo"-like tube with 3 electrical connectors (for the 3 heaters) it connects between the thermostat 19mm "heater" outlet and the cabin heater, it is located at the front of the floorpan/ scuttle (just about where the drivers' feet are but on the other side of the bulkhead) it is visible with the engine undertray fitted, from under the car.

it helps to warm the water/ coolant before it goes to the cabin heater

Some Mk3s had deisel- burning heaters instead (for cold climates - eg for Scandanavian countries etc) the mk3s always had a over- cooling/ not producing enough heat problem - thats why iv'e fitted an (electronically controlled) electric waterpump to mine (and for other reasons) - ive removed my heater and some of the pipes as part of the conversion (don't need it because the electric waterpump only comes on when the engine is warmed up, and it warms up much quicker )

2/

The charcoal (carbon) evaporation canisters are fitted to petrol cars to prevent (or safely filter) petol/ fumes/ gasses escaping into the atmosphere from petol tanks on petrol cars and still allow the tanks to be vented (its another "emmisions" thing)

Its not really nessesary on a diesel (i think mine has a sealed tank with an "expansion chamber" built in to the top of the tank) but thats never stopped them fitting parts designed for petrol- engined cars onto deisels, that should'nt really be there (eg - EGR valves/ systems)

3/

I think it is the oil cooler/ seperator or an associated component

On the mk3 Mondeo diesel engine, there is a watercooled oil cooler on the bottom/ front of the engine, a small thermostat comes out of the side of the waterpump where it feeds a coolant hose then goes to the cooler/ seperator, there is another coolant hose that returns to the radiator

it is (part of) an oll cooler that uses the engines main coolant/ radiator, controlled by its own thermostat (not like a seperate oil cooler radiator like the ones on a race/ performance car )

so water (coolant) and oil runs through it - there should be a water coolant/ in/out and an oil in/out

Do i get a prize if im right? :)

option 3 looks good to me. I went to ford this morning and they showed me this part on their system but couldn't find me hose coming out of this bit.

showed it to a mechanic who charged me £40 and said this connects to the air filter box but we have just installed the air filter box and there is no such places where this part will connect.

we have one spare hole as pictured. Do these two bits connect together.

this part is connected behind the engine and numbers on it are

PA6-GF35 (matches with other part above)

AV61-9C623-B

N07011C160

N07011C170

PA6-GF35 (matches with other part above)

AV61-9C623-B

N07011C160

N07011C170

Just got some more photos off ebay for the similiar engine. CAn you see in pic 2 the hose coming from back to front. Don't know where it connects at front.

All sorted. I have connected the hose as shown in this engine. thanks everyone.