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Brake wear sensors

supersport

PCGB Member
Member
Just about to order new pads and came across a choice of two sensors, round socket or a plastic plug. So for an 87 car, I guess 86 model year which do I need? Without getting on my hands and knees I am guesing the round ones?
 
'86 model year will have been built between September 1985 and August 1986. A 1987 registered 944 will almost be either an '87 or '88 model car.
 
True, but I get the impression that the OP is only looking to replace them to extinguish the lamp. Thats £75 per car ex fitting (theyre about £9 ea in my experience not inc carriage) , so not to be sniffed at.
 
For me it's not about the cost,it's about removing unnecessary complexities. I love the balance of the chassis and the way my S2 makes it's power. But what I don't love is all the bits that Porsche put on to make the car sit with the competition. Things like abs ( mine is removed) brake pad wear indicators ( why? Do you not check your pads regularly).
What other things on our cars are there but add nothing to the experience?
 

ORIGINAL: 944 man

True, but I get the impression that the OP is only looking to replace them to extinguish the lamp. Thats £75 per car ex fitting (theyre about £9 ea in my experience not inc carriage) , so not to be sniffed at.

Not quite sure how you worked that out from my OP[&:] I am doing it because the pads are worn and need replacing. As stated one of the sites offered up two choices of connector and didn't know which the car has.

Generally I like to replace like with like and at about £8 a side it doesn't seem an unreadable cost. I will go look under the car and check for myself. Euro car parts have 50% off until Monday so want to get ordered but was at my desk.
 
Just in case anyone else is ever interested it is the plug type.

Just have to get the pads and everything changed now.
 
Cool. Sorry the post got away from us a bit. But that's what always happens, At least you got to the bottom of it and are fixing the problem.
 
ORIGINAL: supersport

Just about to order new pads and came across a choice of two sensors, round socket or a plastic plug. So for an 87 car, I guess 86 model year which do I need? Without getting on my hands and knees I am guesing the round ones?

You don't have to order your parts from Type911 but if you visit their site you will find a very usefull set of adobe files of the complete P.E.T. files (Porsche Ersatz Teile) [Porsche Replacement Parts] that will with few exceptions allow you to identify the correct part number for your car where there is more than one option. The list will usually give something like 944.001.01 -> gn44140 and gn44141-> 951.005.06 meaning that the first part number(and by the way these are numbers I made up for illustration purposes) would be up to chassis number 44140 in 1986 car (A=1980 [no "letter I,O or Z"]) built in N neckersaulm S stuttgart. Then the second number would be from gn44141 onwards. Then you can do the best job you can to order the right part. Try OPC they will often surprise you, and I hear that Porsche Centre Exeter are very competetive on price. With out wishing to insult those who do, I think that looping out the sensor wires (the sensor has a thin wire filament that completes the circuit that the disc wears through as the pad wears) is a bit of a bodge to be honest. For me you can play with boost and fuel pressure; as the old advert used to go, run out of petrol and your car will stop, run out of brakes and it won't! Been there done that! I actually had a brake pipe on a beetle burst when testing the pedal for sponginess in a car park. The frame head had hidden the corrosion at the point where the pipe passes through right next to the fuel pipe. Suddenly the pedal went to the floor. With the way the MOT is going, with customised number plates and ABS warning lamp a failure now, it wouldn't surprise me if a test for the sensors to be fitted and in circuit was introduced.
 
ORIGINAL: 924nutter
For me you can play with boost and fuel pressure; as the old advert used to go, run out of petrol and your car will stop, run out of brakes and it won't!

I disagree with this, surely the people in this thread bypassing the pad wear indicator are committing to keeping on top of their pad wear?

Also a pipe failure and a pad wearing out are in a different universe in terms of severity. Anyone that has actually had a pad wear out will testify just how mundane an experience it is. It is far from a terminal failure like your unfortunate incident with the beetle - brake failure is a scary thing indeed.

Remember only one pad will wear out first giving you 7 pads instead of 8 and even at that the metal backplate creates a lot of friction (at the expense of the disk surface), it also creates a load of noise. At worst the experience is embarrassing and usually means a set of disks with your pad replacement. I've had pads wear out on track and if it wasn't for the noise I wouldn't have even known.

Most people replace pads well before they are anywhere near this stage though, I certainly do.

I consider bypassing the pad wear indicator a reasonable decision as long as it is a considered decision by the person doing it - cars never used to have pads sensors and were fine then.

Rgds,

Dunc.
 
I completely agree Dunc, we got on fine without PWS and the considered desicion is fair enough until the time comes to sell on, what then? Ok the number of sell-ons of a 944 may be counted on the fingers of one hand these days but will we see the same approach to more modern machinery, and not necassarily just the Porsche brand? At some point we are going to need the sensors connecting up or are we condoning something else. I would not buy any kind of 944 "they'll be alright if y ou keep on top of pad wear" and shame on anyone who did not mention when questioned. Looping out is only delaying the inevitable.
 
Lets get serious here. What kind of person can't tell that they need to change their brake pads. I would wager the kind of person who buys a car because it's a nice color and not the kind of person who is in the market for a classic Porsche. The thing is that the cheap Porsche of the masses is now a Boxster and not a 944. Just saying and don't mean to offend anyone but if you don't know your brake pads are on the way out your going to struggle to look after a classic.
 

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