Changing Front o2 Sensor

[SpoolinTalon2]

So like the tile says, I need to change my front o2 sensor on a 95 tsi fwd. I was looking at it and it just seems like i need to take some of the heat shield parts off and then just unscrew the o2 sensor, any suggestions guys? Thanks.

 

[jankab]

 

[elfroggo]

^^ What was that?

Anyway, you will also need to take out your AC fan for clearance.

Remember to disconnect your battery first.
Remove heatshields, lower and upper if it helps.
It may be tricky to get the lower heatshield around the dipstick but it does come out.

Use special O2 sensor socket to remove the o2 sensor from the housing. It can either come out easily or be really difficult. Spray liquid wrench or whatever you need to get it off.

The way the wire twists up can be a little tricky.

Overall it isn't hard.

 

[JayRolla]

Its sometime easier to get out with the parts hot just dont burn yourself.

 

[spyderturbo007]

When I replaced mine about a year ago, I didn't have to remove anything. I was able to slide the O2 socket in and remove the sensor. I would try that before I start removing parts.

 

[SkURTnDSM92T]

Agreed, you should not have to remove too much. The thing that makes it so easy is stopping by your local advanced or autozone and picking up the specialty socket for O2 sensors. I dont remember the size, but I think there was only one to chose from. $5 and a lot of saved time.

 

[FORMONTOYA]

Agreed, you should not have to remove too much. The thing that makes it so easy is stopping by your local advanced or autozone and picking up the specialty socket for O2 sensors. I dont remember the size, but I think there was only one to chose from. $5 and a lot of saved time.

Nailed it right on the head, a $5-10 socket (depending on where you live) from the local auto parts store will get the O2 sensor off with out removing anything, and yes...there's only one size. And it does come off easier when hot, just watch the hands. I've done it several times. Then just follow the wire around and the plug bolts to the hard water pipe bracket underneath the T-stat housing...at least on a 98. Shouldn't be much different as you're also a 2G.

 

[andymoraitis]

Repeatedly spraying the sensor and O2 with PB Blaster will also help loosen up any sticky threads. Best results are achieved when the motor is warm as it will absorb more effectively. So that there's more room, I prefer to remove mine from underneath.

Good luck. A little muscle and some patience and you'll be fine,

Andy

 

[spyderturbo007]

And it does come off easier when hot, just watch the hands. I've done it several times.

Excellent safety tip from FORMONTOYA.

Bumping a hot downpipe while attempting to bleed your clutch master cylinder on Wednesday night, really, really hurts. Hummm.......I wonder who did that.

 

[andymoraitis]

Bumping a hot downpipe while attempting to bleed your clutch master cylinder on Wednesday night, really, really hurts. Hummm.......I wonder who did that.

See what happens when you buy a new home and can't afford long sleeves anymore? I'd advise that you get some so that you can continue to bake my cookies.

 

[diablos991]

I just bought one of these sockets, and the size was 22mm/(some SAE measurement) and it clearly said 02 sensor socket on it. There is only one size so don't worry about picking up the wrong one.

 

[spyderturbo007]

See what happens when you buy a new home and can't afford long sleeves anymore? I'd advise that you get some so that you can continue to bake my cookies.

We aren't house poor.................well, not yet. I guess we will be on Sept 20th.

Besides, I normally bake your cookies while wearing a French Maid's outfit.

 

[FORMONTOYA]

I guess to clarify....there is only one size, but you will be able to tell it's correct as it's a deep socket with a slot down one side to allow the wire to pass out of the "well".

 

[andymoraitis]

Besides, I normally bake your cookies while wearing a French Maid's outfit.

My wife thinks that's really sexy, while I think you may have scarred me for life. I mean the mental imagery is just....wow!

Thanks for the laugh Nathan!