I searched, but wanted to ask about calipers and mirror caps...

[Lizard 1]

So...

I did a search and seems that for the B8,5 Allroad, the Macan 2.0T stock calipers are a direct bolt-on. I also understand that you need to upgrade the rotors also and cannot remember what Zimmerman part number it is, but know you need to.

HOWEVER, I have a set of B8 S5 front and rear calipers available and have seen some people running those. Not sure if they are B8s or newer.

So, what is a direct bolt on that will work on an Allroad B8.5? I am running the RS5 rotor 20" wheels so, no worry on rubbing. I am also not worried if needing a bracket to relocate, but would prefer a direct bolt on.

I would also like to know what year S4 rear calipers will work or if the B8 S5 rears will also bolt up and what rotors are needed.

Final question is that I would like to get S-Series aluminum covers for the mirrors. I know the Allroad has the dumbo mirrors, but is there a set that people gravitate to in order to get the aluminum ones? I like the idea that it would match the lower trim on the sides and front and rear lower facias that are all aluminum.

THANKS!!

[Lizard 1]

Also, when it comes to the Macan calipers... Will the 3.0 calipers fit? They are 95B units also, but obviously a different design. Wasn't sure as the 3.0 has different calipers but same models and years...

[shreddykrueger]

I’m running macan front calipers on s4 rotors (345mm) with s4 rears (330mm rotors).

Direct bolt on, will just need to order different pads as the Macans are 4 piston and s4/s5 are single piston.

[Smac770]

The B8.5 Q5 and the Macan 2.0T of that time use the same Brembo fixed caliper front brake system. The only B8.5 Q5 that carried on the TRW single-piston floating caliper front brakes, which the A4 and A5 also continued to use, was the hybrid. As they all still used the same knuckle and wheel bearing config, anything made for one bolts right up to the others, so long as you use the matched rotor/caliper/carrier/pads parts group.

B8.5 Q5 2.0T used 320 4-piston fronts
B8.5 Q5 3.0T and 3.0 TDI used 345 4-piston fronts
95B Macan 2.0T used 345 4-piston fronts

The 95B Macan 3.0T (S/GTS) use a completely different component set, and were 350 6-piston fronts. There's also the consideration of maybe needing a different master cylinder for the different brake system. Not the quick upgrade path.

There's plenty of material out there about mounting the Macan 320/345 fronts on the B8 platform. Such as https://www.audizine.com/forum/showt...-on-B8-B8-5-A4


If you want the cost and work of retrofitting the MY10+ sedan/avant small mirrors to the allroad, go right ahead. I'd just wrap/paint the things.

[Lizard 1]

The B8.5 Q5 and the Macan 2.0T of that time use the same Brembo fixed caliper front brake system. The only B8.5 Q5 that carried on the TRW single-piston floating caliper front brakes, which the A4 and A5 also continued to use, was the hybrid. As they all still used the same knuckle and wheel bearing config, anything made for one bolts right up to the others, so long as you use the matched rotor/caliper/carrier/pads parts group.

B8.5 Q5 2.0T used 320 4-piston fronts
B8.5 Q5 3.0T and 3.0 TDI used 345 4-piston fronts
95B Macan 2.0T used 345 4-piston fronts

The 95B Macan 3.0T (S/GTS) use a completely different component set, and were 350 6-piston fronts. There's also the consideration of maybe needing a different master cylinder for the different brake system. Not the quick upgrade path.

There's plenty of material out there about mounting the Macan 320/345 fronts on the B8 platform. Such as https://www.audizine.com/forum/showt...-on-B8-B8-5-A4


If you want the cost and work of retrofitting the MY10+ sedan/avant small mirrors to the allroad, go right ahead. I'd just wrap/paint the things.

THIS!! Great info!!! Looks like I will go the route of the Macan 345 bolt on. Just will get the Macan rotors and be good.

Now, what are the proper rears? Just the S4 rear calipers with brackets and S4 rotors from a B8 era?

You have been greatly informative. THANK YOU!

[Smac770]

https://audi.7zap.com/en/usa/audi+a4...ar/2015-673/6/

The B8 vehicles (minus the RS and the overseas FWD 314x25) had two front sizes:
2.0T - 320x30 vented 1-piston floating TRW
3.0T - 345x30 vented 1-piston floating TRW

and two rear sizes:
2.0T - 300x12 solid 1-piston floating TRW
3.0T - 330x22 vented 1-piston floating TRW


https://audi.7zap.com/en/usa/audi+q5/aq5/2015-751/6/

The B8.5 Q5 expanded this to four different fronts, but the same rears:

2.0T - 320x30 4-piston fixed Brembo
3.0T/3.0TDI - 345x30 4-piston fixed Brembo
PHEV - 345x30 1-piston floating TRW
SQ5 - 380x36 2-piston floating ATE

2.0T - 300x12 solid 1-piston floating TRW
rest - 330x22 vented 1-piston floating TRW

So the S4/S5/most Q5 330x22 rears would be the easy change, if change is needed (if you can't lock them up/kick in ABS, you need better tires or more weight before you need better brakes). I don't know if measuring values would allow you to log if the rears lock up in a full hard stop. The fronts will certainly invoke ABS. But with the weight transfer, are the rears actually locking up.

[dropshadow]

Final question is that I would like to get S-Series aluminum covers for the mirrors. I know the Allroad has the dumbo mirrors, but is there a set that people gravitate to in order to get the aluminum ones? I like the idea that it would match the lower trim on the sides and front and rear lower facias that are all aluminum.

THANKS!!

The silver S mirror caps haven't been real aluminum for a long, long time. The OE caps are satin finish silver plastic. Grab a set of silver dumbo caps from ebay and be happy with all the money you saved.