Has anyone suffered from a metallic rubbing noise from the rear wheels when cornering with enthusiasm? I notice there is a thin sheet of metal behind and close to the discs that I'd expect to make the sort of tinny noise I'm hearing and I suspect it's rubbing off the back of the discs when a bit of cornering force is applied. Is it a sign of something I should be worried about (suspension?). It did happen before and the OPC seemed to fix it, but only temporarily.
Rubbing noise from rear right
- Thread starter jw2015
- Start date
Car is in for a service - 4yr (12000 miles [
]) - full service with plugs and brake fluid - £826 - yikes!!!! I asked them to look at this scuffing noise and got a call a wee while ago to tell me they think it's due to corrosion on the inside of the discs, rubbing off the back plate - they say they can get a slight scuffing noise when turning the wheel. Having heard the stories about corrosion I was expecting his next sentence to be - "so we'll need to replace yer discs too"; however, to my amazement, and just before I almost preempted him with a rant about OPCs having a licence to print their own money, he says - "we wouldnae recommend replacing them, you've got a lot more life in those discs yet, we'll try and give them a clean and see if that helps". I'm amazed. There also doing a bit of labour for free, replacing the front number plate plint - but then they were taking the p1ss asking me for £21 + vat in labour for doing nothing more than unscrewing and replacing 2 sets of screws. Anyway, I'm still picking myself up off the floor with the 'service' cost but at least they didn't totally try to take the p1ss.
]) - full service with plugs and brake fluid - £826 - yikes!!!! I asked them to look at this scuffing noise and got a call a wee while ago to tell me they think it's due to corrosion on the inside of the discs, rubbing off the back plate - they say they can get a slight scuffing noise when turning the wheel. Having heard the stories about corrosion I was expecting his next sentence to be - "so we'll need to replace yer discs too"; however, to my amazement, and just before I almost preempted him with a rant about OPCs having a licence to print their own money, he says - "we wouldnae recommend replacing them, you've got a lot more life in those discs yet, we'll try and give them a clean and see if that helps". I'm amazed. There also doing a bit of labour for free, replacing the front number plate plint - but then they were taking the p1ss asking me for £21 + vat in labour for doing nothing more than unscrewing and replacing 2 sets of screws. Anyway, I'm still picking myself up off the floor with the 'service' cost but at least they didn't totally try to take the p1ss.
If it's 4 years I hope they are doing the airbag check too...?
they didn't mention it, but then I just found out today that they should've replaced the brake fluid after two years but didn't. They wouldn't have picked up on the plugs being needed except I brought the subject up. Oh well, costs to date due to mileage, excluding extortionate warranty (that did pay for itself last year), are annual check, followed by minor service, followed by annual check, followed by major + plugs + fluid = approx £1400, which is £350 a year and has actually been no more expensive than the servicing of my Saab family-mobile (you can tell I'm trying to justify having the boxster, especially with the cost per mile that 3000 miles a year gives you []).
]).
I thought the spark plugs don't need replacing till 48,000 miles ?
I did my own 4yr service (36,000 miles), just changed the oil + filter with Mobil 1, pollen filter (£100 parts).
I flushed the brake fluid last week myself (£12 super dot 4 from OPC).
Also replaced the front disc's + pads and rear pads.
I get a rubbing noise from the rear wheels when cornering with enthusiasm, I bought a set of rear disc's but not fitted then yet as there good for another year or so.
Regards,
Chris.
I did my own 4yr service (36,000 miles), just changed the oil + filter with Mobil 1, pollen filter (£100 parts).
I flushed the brake fluid last week myself (£12 super dot 4 from OPC).
Also replaced the front disc's + pads and rear pads.
I get a rubbing noise from the rear wheels when cornering with enthusiasm, I bought a set of rear disc's but not fitted then yet as there good for another year or so.
Regards,
Chris.
Mark,
I have a few more questions about the 4 yr service that may be you could possibly answer:
1) Does the airbag check need the PST tool or can you use the Durametric scan tool, I have seen the procedure in the 986 Bentley Manual but not read it fully?
2) What do the OPC do when doing the free corrosion check ? (Can't see it defined in the 986 workshop manual or the 986 Bentley Manual).
Regards,
Chris.
I have a few more questions about the 4 yr service that may be you could possibly answer:
1) Does the airbag check need the PST tool or can you use the Durametric scan tool, I have seen the procedure in the 986 Bentley Manual but not read it fully?
2) What do the OPC do when doing the free corrosion check ? (Can't see it defined in the 986 workshop manual or the 986 Bentley Manual).
Regards,
Chris.
I'm afraid I don't know - I don't yet have the Bentley Manual (maybe I'll get it for Christmas [
]) so I think you've got more info than I have []I'm just another customer at the OPC I'm afraid - I ask questions but don't always get the answers.
Oh dear, looks like I will have to take out the plugs to see if there OK.[
]I wanted to avoid doing this as I'm worried about cracking the coils, as its all working fine at the moment.
Just been to Wales for a week and drove 600miles which worked out she was doing 39 MPG! But still only getting 26MPG going to work (30 miles of traffic).
@Mark: Thanks for the help. I'm sure someone in the PCGB knows the answers to my questions, I should ask my OPC...
@JCB: You would think the PCGB would have access to tech info.
Regards,
Chris.
I can't help with the body corrosion check, but you do need a PST2/PIWIS Tester for the airbag check. The fault memory is read out, then fuse E1 is pulled to create a fault and trigger the airbag light, and then the fault is cleared. Other than that, it's a quick visual once-over.
Richard,
Thanks for the info, the Durametric tools states that it can read/Clear DTC's on the Airbag, so I assume that I could use it to test the Airbag operation ?
That gives me a good reason to buy a Durametric now..[]
I will have to do some more reading on the Airbag testing, but I think the basic idea is to test the Airbag will fire without having it connected to the vehicle.
The removing of the fuse I think is to simulate the Airbag not sending an acknowledge signal on powerup, which cause a DTC to be logged.
Regards,
Chris.
Thanks for the info, the Durametric tools states that it can read/Clear DTC's on the Airbag, so I assume that I could use it to test the Airbag operation ?
That gives me a good reason to buy a Durametric now..[
]I will have to do some more reading on the Airbag testing, but I think the basic idea is to test the Airbag will fire without having it connected to the vehicle.
The removing of the fuse I think is to simulate the Airbag not sending an acknowledge signal on powerup, which cause a DTC to be logged.
Regards,
Chris.
Yes, the Durametric will be fine for that - it's a great piece of kit for the money. You only need it to reset the light, and pulling the fuse is just to simulate a failure, as you say. The full procedure is:
Passenger protection maintenance: Inspecting airbag
system
1. Function test of airbag warning light. Switch on ignition to carry out this test. The airbag warning light must light up for approx. 3 seconds. If the warning light does not light up, check the bulb and power supply.
2. Function test of the airbag system:
_ Connect and switch on the Porsche System Tester.
_ Switch ignition on.
_ Establish communication with the Airbag/POSIP control module.
_ Read out fault memory: No fault stored.
_ Remove E1 fuse.
_ Fault present after approx. 30 seconds>>Airbag warning light<<.
_ Insert E1 fuse again.
_ Clear fault memory.
_ Read out fault memory again after approx. 30 seconds: No fault stored.
3. Check that a trim or stickers are not attached to the airbag units (driver's, passenger's, side airbag).
4. Visual inspection of the components for damage and deformation.
5. The system check must be acknowledged in the stamp spaces provided in the Guarantee and Maintenance booklet.
Passenger protection maintenance: Inspecting airbag
system
1. Function test of airbag warning light. Switch on ignition to carry out this test. The airbag warning light must light up for approx. 3 seconds. If the warning light does not light up, check the bulb and power supply.
2. Function test of the airbag system:
_ Connect and switch on the Porsche System Tester.
_ Switch ignition on.
_ Establish communication with the Airbag/POSIP control module.
_ Read out fault memory: No fault stored.
_ Remove E1 fuse.
_ Fault present after approx. 30 seconds>>Airbag warning light<<.
_ Insert E1 fuse again.
_ Clear fault memory.
_ Read out fault memory again after approx. 30 seconds: No fault stored.
3. Check that a trim or stickers are not attached to the airbag units (driver's, passenger's, side airbag).
4. Visual inspection of the components for damage and deformation.
5. The system check must be acknowledged in the stamp spaces provided in the Guarantee and Maintenance booklet.
Richard,
Thanks for the detailed Airbag testing procedure.
Looks like a 10 min job with the Durametric Tool, I must get round to ordering one...
I had a play with a Durametric on Roddy's 993, looks very interesting.
I got my own handheld scan tool (software I have wrote) but not sure what the airbag module address is, or if its on the ISO or CAN diagnostics bus.
Maybe worth copying your airbag test to a forum FAQ sticky or under Mark's "Useful Links and Threads" section.
Regards,
Chris.
Thanks for the detailed Airbag testing procedure.
Looks like a 10 min job with the Durametric Tool, I must get round to ordering one...
I had a play with a Durametric on Roddy's 993, looks very interesting.
I got my own handheld scan tool (software I have wrote) but not sure what the airbag module address is, or if its on the ISO or CAN diagnostics bus.
Maybe worth copying your airbag test to a forum FAQ sticky or under Mark's "Useful Links and Threads" section.
Regards,
Chris.
Possibly the solution to my problem is to find a large roundabout and tear around it at speed until I can't see straight. If it's uneven disk surface then it stands to reason that I can wear it down with a wee bit of effort. Serves me right for not using the car enough these days (v. bad back keeps me less active than I'd like to be).
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