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Author Topic: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?  (Read 9163 times)

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Doctor Gollum

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #105 on: 09 November 2018, 15:14:31 »

I recently did the rear calipers on kitty and had to rewind the piston.  Clockwise is fairly typical across the market and I used the small cube tool I bought from the local factors.  It wasn't a perfect fit but I created a clean flat edge for it to bite on to and that did the trick.  A pig to get started but once moving it took half a dozen turns to get back far enough for the new discs and pads.
Fords tend to be sided, hence the two winders in the set linked to :y

Forcing the pistol in with a hammer will probably require a new caliper ???

If you have a Haynes manual, why on earth did you not read it :o
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Nick W

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #106 on: 09 November 2018, 16:25:35 »

Hit the wrong key. I see lots of tools on e-bay, but I could not imagine how I could improvise one. The cube tool at 3 is no good, you say. Others come as kits in a box. Cn you recommend one?


there really is no difference between considering the very limited use you're going to put it to.


So buy the cheapest, something like THIS



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dave the builder

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #107 on: 09 November 2018, 16:44:03 »

universal kit on ebay
15 inc delivery clicky
says 48 hour courier delivery   :-\


So buy the cheapest, something like THIS


slow delivery compared to the kit i linked  :-\
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terry paget

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #108 on: 09 November 2018, 20:33:16 »

Thanks to all for advice. I bought a Laser piston retracting tool from a local factor and it did the job. Rear discs are now changed, so that's the car ready for MOT. However I must check the engine light stays off, and I suspect a drop link is dodgy too.

I liked the Astra high tech wear sensor, a simple spring steel tongue that will make a scraping noise against the disc when it touches it. It is on the front right corner of this pad, sitting on this little worn but MOT failing disc.

 
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dave the builder

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #109 on: 09 November 2018, 20:45:42 »

Well done  :y
that style wear indicator is common on many cars
did you replace the brake fluid ? bleed all brakes  :-\
part of the mot now includes brake fluid obviously contaminated  :y
(so if fluid in reservoir is dirty, it's a fail  )
unless your returning it to the same test station who missed it  ;D

any smoke when warm ,now you changed the oil ?
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terry paget

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #110 on: 09 November 2018, 21:22:32 »

I have not changed the brake fluid yet, though I intend to. I will check whether it looks obviously contaminated.The MOT was carried out in Warminster by the previous owner. I bought the car as a spares and repair MOT failure. I did not notice any smoke on engine start, either before or after the oil change. My plan is to check for dodgy drop links, change any I find, perhaps polish the headlights, then submit for MOT test. There's no hurry though, so I might as well change the brake fluid now. I noticed the rear calipers had rubber caps on the bleed nipples, suggesting never used; I gently applied even torque to undo one of them, and it turned! I shall change the oil again soon, after 100 or so miles.
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The Battery Boy

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #111 on: 10 November 2018, 09:08:56 »

There should always be rubber caps on the bleed nipples  ???
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terry paget

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #112 on: 10 November 2018, 09:33:46 »

There should always be rubber caps on the bleed nipples  ???
Quite so. But as a frequent buyer of used cars I find more often than not one or more bleed nipple cap is missing, which suggests that the brake fluid has been changed at least once.
Haynes instructs that on pushing back the caliper piston I should open the bleed nipple and clamp the brake hose, lest grit get back into the ABS unit. Not done that before, but never suffered ABS unit failure on that account. Mine fail electronically.
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YZ250

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #113 on: 10 November 2018, 09:35:26 »

......
did you replace the brake fluid ? bleed all brakes  :-\
part of the mot now includes brake fluid obviously contaminated  :y
(so if fluid in reservoir is dirty, it's a fail  )
........

Always struck me as a bit of an odd one as unless the MOT'er bleeds a brake caliper, how does he know that the owner hasn't dunked a sheet of kitchen roll in the brake fluid reservoir to suck the old out and then topped up with fresh the day before. It must happen surely.  :-\
I have an easi-bleed but it's not everybody's favourite job is it. Off out to check the colour of mine now.  ;D
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Doctor Gollum

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #114 on: 10 November 2018, 09:36:50 »

It's good practice as it removes most of the dead/gungy/sludge fluid from the caliper...

Actually makes a difference to brake feel as well :y

Using the pipe from an ezibleed kit, pop one end in a jar of brake fluid and support it below the caliper, then attach tother end to the nipple. Crack it half a turn and wind/push* the piston/s in. Once piston is solid, close the nipple securely.

*As appropriate... In the case of integral handbrake mechanisms, wind.
« Last Edit: 10 November 2018, 09:40:15 by Doctor Gollum »
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Doctor Gollum

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #115 on: 10 November 2018, 09:41:03 »

......
did you replace the brake fluid ? bleed all brakes  :-\
part of the mot now includes brake fluid obviously contaminated  :y
(so if fluid in reservoir is dirty, it's a fail  )
........

Always struck me as a bit of an odd one as unless the MOT'er bleeds a brake caliper, how does he know that the owner hasn't dunked a sheet of kitchen roll in the brake fluid reservoir to suck the old out and then topped up with fresh the day before. It must happen surely.  :-\
I have an easi-bleed but it's not everybody's favourite job is it. Off out to check the colour of mine now.  ;D
Arguably, brake fluid is a bi annual service item ::)
« Last Edit: 10 November 2018, 09:48:16 by Doctor Gollum »
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YZ250

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #116 on: 10 November 2018, 09:44:24 »

It's good practice as it removes most of the dead/gungy/sludge fluid from the caliper...

Actually makes a difference to brake feel as well :y

Agreed.  :y  It's also a good indication of how free the piston is in the slider as there should be very little resistance doing it this way.  :y
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STEMO

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #117 on: 10 November 2018, 10:12:33 »

......
did you replace the brake fluid ? bleed all brakes  :-\
part of the mot now includes brake fluid obviously contaminated  :y
(so if fluid in reservoir is dirty, it's a fail  )
........

Always struck me as a bit of an odd one as unless the MOT'er bleeds a brake caliper, how does he know that the owner hasn't dunked a sheet of kitchen roll in the brake fluid reservoir to suck the old out and then topped up with fresh the day before. It must happen surely.  :-\
I have an easi-bleed but it's not everybody's favourite job is it. Off out to check the colour of mine now.  ;D
Arguably, brake fluid is a bi annual service item ::)
Hmmm.......none of my cars has ever had a brake fluid change. I'm lucky to be alive.  ::)
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dave the builder

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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #118 on: 10 November 2018, 11:03:04 »

I do as DG ,the jam jar with small amount of old brake fluid in but use the tube for fish tank air stones(under the fluid ,so air can not get drawn back up) ,very cheap ,but effective method  :y
Not a fan of easybleed pipes and valves,the valves stick .
I NEVER clamp a flexi , just bleed the lot through .
And it will make a noticeable difference if the fluid is old (potentially 10 years old or more in Terry's case with the 2004 astra) and there was a service bulletin re brake fluid change  on astra of that era.
  If you have ever done the brake fluid change and seen the colour of the fluid that comes out the calipers, you'd be a convert to regular changes.
 yes, some people may suck out fluid from the reservoir and put fresh in to fool the NT (MOT tester) ,If it's dirty in the reservoir, just imagine how dirty it will be in the calipers ,plus clutch line(in proper cars with a full compliment of feet controls)   

GOOD LUCK with the test Terry and well done working your way through the jobs  :)
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Re: Where is the OBD2 socket on a 2004 Astra 1.6 petrol?
« Reply #119 on: 10 November 2018, 14:10:23 »

Changed the brake fluid this morning, though the reservoir is white opaque to defeat the MOT tester; fluid came out looking fairly clean too. I have an Eezibleed kit, but still found I had to remove the wheels. I changed the o/s drop link, and found the bottom joint satisfyingly shot.

Cambelt, pulleys, tensioners and water pump were changed October 2014, 35000 miles ago. I see what is surely the water pump bottom right of the engine driven by the auxiliary belt, so there is particular reason to change it with the cambelt. Must grease the tensioner pulley, though.
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