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New owner questions


TimST2
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I've had my 2016 ST-2 for a couple of weeks now. I previously owned a 2012 Zetec so I'm familiar with most things but there are a few differences specific to the Mk7.5 and the ST...

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1) Both rear hubs have surface rust on them (the ST has disc brakes all-round so the rear hubs are different to my previous Fiesta). It that normal?

2) When the car is idling with the air con switched on you can hear a whirring noise that comes and goes. I assume that's the compressor running and the compressor clutch engaging and disengaging. At anything above about 20mph road/engine noise drowns it out. On my previous Fiesta the engine cooling fan ran constantly when the air con was on (so the noise was quite different) but that doesn't seem to be the case on this new car. Again, normal?

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Yeah I suspect both are quite normal but it would be good to hear other Fiesta owners experiences. With the hub rust it's wierd that it only seems to affect the rears.

Sent from my SM-G900F using Tapatalk

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On closer inspection it seems that the rust is on the centres of the discs, not the wheel hubs, and the discs on the rear are smaller than the front so perhaps a different material too? Either way it cleans off if you rub it...

I'd still be interested to hear from other owners about the air con. Can you hear it whirring when the engine is idling?

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I called in at a Ford main dealer near work today and they had one of their master techs take a look at it. He said all normal, rear brakes don't get so hot while driving so tend to rust more, and some compressors are noisier than others, especially with the ST. They're going to change the compressor under warranty anyway. [emoji106]

 

 

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  • 3 weeks later...

Non coated brake discs are prone to rusting over time. When I change mine I will be using coated discs from either ATE or Textar.

http://www.ate-brakes.com/products/disc-brakes/original-ate-brake-discs/coated-brake-discs/

https://textar.com/brake-discs/

 

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