: How to change the fuel filter on a 1.7 CDTI



JohnLan
23-09-2010, 18:45
The Hayne manual is not very clear on this, so here is some help..


What you will need :
A new fuel filter. This should contain two rubber grommets in a bag. If it does not, do not accept it.
2 small electricians flat blade scredrivers
1 long (7-8 inches) flat blade screwdriver
1 fuel can with spout
1/2 litre of diesel in the fuel can
some lithium based grease (optional)
2 old rags and some newspaper
one pouring spout
one old plastic bottle - 1 litre preferably or similar container
1 torx screwdriver to fit the bolt in the top of the filter housing.
One can of WD40
some cling film and a rubber band
one plastic band to dispose of smelly diesel smeared rubbish
One note here - you will be handling diesel fuel here, so you want to be prepared for spills!

The fuel filter is bolted to the bulkhead at the back top of the engine bay, and is almost central. It has two fuel lines going in from the right, and an electrical connection coming into to the left.
First you will need to remove the heater cable from the left of the filter housing. Use a small flat blade screwdriver to raise the clip on the top of the connector, and gently pulll the connector away.

Next, place one of the rags under the fuel filter housing. This is to catch diesel spills!
Next you will need to disconnect the two fuel lines. To do this, you will need to gently depress the quick release clips on the end of these lines using the small flat blade screwdrivers. There are 1 of these on either side, so one screwdriver either side. Press towards the centre of the fuel line with the blade of the screwdriver. Be gentle, you do not want to break the plastic. A gentle tug and the line will come away. Repeat for the other fuel line. Next, wrap the cling film over the end of the lines and secure with the rubber band. You do *not* want any dirt in there!
The next step is to get the fuel filter housing out of it's protective crash box. The filter housing is attached to the crash box by plastic extrusions that slide into grooves in the crash box. Have a look at the back of the filter housing - you will see it appears to be connected to the crash box. You need to pull the filter housing out by sliding upwards. Easily said, right? But you will often find that the filter is solidly gripped and is not moving. So get your WD40 out and with the straw attachment spray over where the filter housing connects to the crash box. Then waggle the filter housing as much as you can to work the oil into the gap. Leave for 2 minutes, give it another wiggle. Leave for another 2 minutes.
Next get your long flat bladed screwdriver out. You are going to use this to lever the filter housing out of the crash box from the side. Insert the screwdriver from the left of the crashbox, there is a gap there. You want to get the blade underneath the connection between crash box and filter housing. Then using the edge of the crash box for leaverage push downwards with the screwdriver GENTLY - do not break the crash box! You will find that the filter housing is pushed upwards. Keep going and you will find the filter housing slides out completely into your hand.
Next, unscrew the bolt in the top of the filter housing. BE CAREFUL- it is half full of diesel!
Tip the fuel into the spout and plastic bottle (You will need to do this over the newspaper ). Dispose of this safely.
Grip the old filter, pull it out and dispose of it. Dispose of the old grommet on the filter bolt, and the larger grommet on the filter housing lid. Replace with the new grommets.
Insert new filter.
Get your fresh diesel and your fuel can, and fill up the filter housing. This will make priming and restarting the car much easier and quicker.
Bolt up the lid on top - be careful you do not overtighten - it is plastic!
Next bit is optional - smear grease on the connector of the filter housing, where it slides into the crash box, so you don't have to go through the same hassle of getting it out in 2 years time.
Replace filter housing, reattach fuel lines by pushing them in gently. Replace the heater cable.
Switch ignition on for 15 seconds but do not start car (this primes the fuel lines). Repeat 3 times.
Then start car. It should start up after 1 second. If not repeat.
Done.

I have photos, but could not upload these...

solorider
24-09-2010, 04:43
you dont need to remove the fuel pipes,i did not do it on my 1.7

broomy
16-03-2013, 11:20
Just what I was looking for cheers :) anyone confirm if the fuel lines can stay attached in the 1.7?

steky
16-03-2013, 17:54
Yeah they can stay attached, changed mine several times now and you don't really need to remove them.

broomy
16-03-2013, 20:18
Yeah they can stay attached, changed mine several times now and you don't really need to remove them.

Cheers bud :)

KevT
17-03-2013, 16:11
definatly dont need to remove the fuel lines. the best tip i would give is to have a spare but of diesel in a bottle to top the new filter up with before fitting the top otherwise mine has issues starting after teh filter swap

steky
19-03-2013, 19:32
definatly dont need to remove the fuel lines. the best tip i would give is to have a spare but of diesel in a bottle to top the new filter up with before fitting the top otherwise mine has issues starting after teh filter swap

Yeah I would steep the new filter in diesel before fitting this way it helped with starting.

AstraDannyGSi
20-03-2013, 16:23
Ive always left the fuel lines connected when changing my fuel filter and yes have some diesel in a bottle to hand, i personally have a bottle of uni parts diesel treatment that i pour in to the bowl gives ya injectors a clean and fills the bowl up nicely.

broomy
29-03-2013, 13:28
Just doing this today but got a dilemma! This is the fuel filter I removed

6951

6952

But this is what vx have given me?

6953

6954

Have they given me the wrong one?

Any urgent advice greatly appreciated.

Rowan Osborne
29-03-2013, 15:06
That doesn't look right to me.. Looking up the part code it is a fuel filter for a vauxhall but i can't get much info on what its actually for

EDIT: Found this list of compatible vehicles for a PURFLUX C511


OPEL ASTRA H 1.7 CDTI (80 HP) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-1-7-cdti-17847-9.html) - Diesel
OPEL ASTRA H 1.7 CDTI (100 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-1-7-cdti-17848-9.html) - Diesel
OPEL ASTRA H 1.7 CDTI (110 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-1-7-cdti-22686-9.html) - Diesel
OPEL ASTRA H 1.7 CDTI (125 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-1-7-cdti-22689-9.html) - Diesel
OPEL ASTRA 1.7 CDTi HA three volumes (101 Ch) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-a-trois-volumes-1-7-cdti-30935-9.html) - Diesel
OPEL ASTRA 1.7 CDTi HA three volumes (110 Ch) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-a-trois-volumes-1-7-cdti-33843-9.html) - Diesel
OPEL ASTRA H Estate 1.7 CDTI (80 HP) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-break-1-7-cdti-18078-9.html) - Diesel
OPEL ASTRA H Estate 1.7 CDTI (101 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-break-1-7-cdti-18079-9.html) - Diesel
OPEL ASTRA H Estate 1.7 CDTI (110 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-break-1-7-cdti-22688-9.html) - Diesel
OPEL ASTRA H Estate 1.7 CDTI (125 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-break-1-7-cdti-22691-9.html) - Diesel
OPEL ASTRA H Sport Hatch 1.7 CDTi (101 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-sport-hatch-1-7-cdti-18299-9.html) - Diesel
OPEL ASTRA H 1.7 CDTI Sport Hatch (110 HP) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-sport-hatch-1-7-cdti-22687-9.html) - Diesel
OPEL ASTRA H 1.7 CDTI Sport Hatch (125 HP) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-sport-hatch-1-7-cdti-22690-9.html) - Diesel
OPEL ASTRA H 1.7 CDTI Sport Hatch (80 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-sport-hatch-1-7-cdti-32003-9.html) - Diesel
OPEL ASTRA H Van 1.7 CDTI (101 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-van-1-7-cdti-9243-9.html) - Diesel
OPEL ASTRA H Van 1.7 CDTI (110 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-van-1-7-cdti-9249-9.html) - Diesel
OPEL ASTRA H Van 1.7 CDTI (125 hp) (http://www.pluspiecesauto.com/p-filtre-a-carburant-opel-astra-h-van-1-7-cdti-9250-9.html) - Diesel


May be of some use to yourself

AstraDannyGSi
29-03-2013, 15:41
What year is your astra if its 05 or less they've given you the newer fuel filter best thing to do is take your fuel filter with you and get them to match it up to yours

broomy
29-03-2013, 18:27
Cheers lads, phoned up the parts desk & he said the old one has been superseded mine is an 08.

Fitted, working & happy.

Thanks.

Rowan Osborne
29-03-2013, 18:31
Good to hear! Tis on my list to do sometime this summer