Fuel Filter Replacement DIY

Post by **polskamafia mjl** » 26 Jul 2010, 17:20

This is a short DIY write up for the removal of a fuel filter on an 850 sedan.

The OEM filter is a Bosch unit and I highly recommend getting a new Bosch replacement as opposed to an aftermarket unit. The change interval was 60K miles and is now 100K miles. My car has 120K so I decided to change mine.

This is a very short fix; 15 – 20 mins max.

Tools required:
12mm Socket
Socket Wrench
Needle Nose Pliers
New Filter

1. Start by blocking the front wheels, e-brake on, and jack up the rear passenger side of the car.

2. With the ignition off, slide underneath the passenger side just in front of the rear wheel and look up to locate the filter.
The arrow is pointing to the location of the fuel filter.

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3. Undo the 12mm bolt.

4. Pull one of the fuel lines off of the old filter. Your new filter should come with plastic end caps. Have one of these ready to place on the old filter as you pull out the fuel line. Pull in the direction of the arrow.

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5. Now pull out the other fuel line. It doesn’t matter which line you pull first. Have a towel ready as a tiny bit of petrol will leak out and drip onto you. Pull in the direction of the arrow.

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6. With the old filter plugged, remove it from the bracket, insert the new filter, making sure to orient the arrows with the flow of fuel, reconnect the 2 lines, and tighten the 12mm bolt down.

You’re done!

Post by **FlyingVolvo** » 26 Jul 2010, 17:52

Great write-up as always!

However...

I think your pack of cigarettes might not go too well when dealing with maintenance in your car's fuel supply.

Post by **jblackburn** » 26 Jul 2010, 17:58

Looks like you've even got a relatively new filter on there. Mine was rusted on like crazy - I don't know if it had ever been changed before.

Pinned!

Post by **thecheat** » 26 Jul 2010, 18:30

PS: release pressure at the fuel rail or have a glass jar ready to catch fuel or you WILL get wet.

You can of course pinch the fuel line with appropriate hose pliers to keep fuel from leaking out while doing this.

Post by **stone36** » 26 Jul 2010, 18:51

You can also pull the fuel pump relay out with the car running to get rid of the pressure... No spray

FWIW, the procedures is identical on the XC90, same location and everything...

Post by **polskamafia mjl** » 26 Jul 2010, 20:47

ecbsykes wrote:I think your pack of cigarettes might not go too well when dealing with maintenance in your car's fuel supply.

Hahahha....nah...I don't see any problems there.

lol

jablackburn wrote:Looks like you've even got a relatively new filter on there. Mine was rusted on like crazy - I don't know if it had ever been changed before.

Pinned!

No, I took pictures of the new filter for this write up. Tomorrow I'll take a picture of the original one...it was crazy rusted. haha

thecheat wrote:PS: release pressure at the fuel rail or have a glass jar ready to catch fuel or you WILL get wet.

I just waited long enough for the pressure to drop. I just got a tiny dribble, hardly noticeable.

stone36 wrote:You can also pull the fuel pump relay out with the car running to get rid of the pressure... No spray

FWIW, the procedures is identical on the XC90, same location and everything...

I wonder if maybe we should pin this in the XC90 repair database aswell... :-/

Post by **stone36** » 26 Jul 2010, 22:03

polskamafia mjl wrote:
stone36 wrote:You can also pull the fuel pump relay out with the car running to get rid of the pressure... No spray

FWIW, the procedures is identical on the XC90, same location and everything...
I wonder if maybe we should pin this in the XC90 repair database aswell... :-/

I have a pdf pinned called xc90 tune up+ where I have a fuel filter step by step, it comes up second when you search "xc90 fuel filter" so it should be good, I wonder how many of their models have this placement/bracket? my cars represent an 11 year span with no change, chances are alot of them are like this.

Post by **thecheat** » 26 Jul 2010, 22:14

Heck, every fuel filter I have done has been this type of filter bolted to a bracket near the tank. Pretty universal.

Post by **polskamafia mjl** » 27 Jul 2010, 14:57

The old fuel filter. lol

Post by **stone36** » 27 Jul 2010, 21:17

At least you know it has been changed at least once! When I got my 94 in 2003 and changed the fuel filter it still had the original undercoat spray on it, in other words it was the original... as were the plugs and everything else, no wonder I got a good deal...