Not specific to adaptive cruise, but unless VW is using something other than engine braking (beefed up alternator related to auto start-stop, perhaps?) to decelerate when dropping the cruise set speed, it's using the brakes. In other words, if I'm going 80 with the cruise set to 80, and adjust it down to 60, it gets me to 60 in a hurry. Butt dyno says about a 0.2. Maybe I'll throw the Vericom in there and get a real number.
Brake rotor life
- Thread starter PhuongFU
- Start date
Rotors are cheap, I replace them when I put new pads on.
Depends ont he car. Japanese stuff tends to run hard rotors and softer organic pads, whereas europeance manufactures go for softer rotors and metallic pads.
The euro approach is high dust and short rotor life, but better cold bite and better very high speed performance (ie when that muppet wanders into the fast lane of the autobahn in front of you when you're at 200kph +
). My Alfa Romeo and Renaults are lucky to get 50,000 kms (not miles) out their rotors with just normal urban driving, and often the rotors are undersize before the pad has reached minimums.
Japanese brakes last forever, the rotors often the life of the car! I wonder if they spec different pads for German spec sales?
The euro approach is high dust and short rotor life, but better cold bite and better very high speed performance (ie when that muppet wanders into the fast lane of the autobahn in front of you when you're at 200kph +
). My Alfa Romeo and Renaults are lucky to get 50,000 kms (not miles) out their rotors with just normal urban driving, and often the rotors are undersize before the pad has reached minimums.Japanese brakes last forever, the rotors often the life of the car! I wonder if they spec different pads for German spec sales?
I found that to be true on the Hondas I have owned...last foreverDepends ont he car. Japanese stuff tends to run hard rotors and softer organic pads, whereas europeance manufactures go for softer rotors and metallic pads.
The euro approach is high dust and short rotor life, but better cold bite and better very high speed performance (ie when that muppet wanders into the fast lane of the autobahn in front of you when you're at 200kph +
Japanese brakes last forever, the rotors often the life of the car! I wonder if they spec different pads for German spec sales?
I replace rotors along with the pads due to rust 
I’ll add that to list of reasons to like life in Australia! No salt anywhere on our roads, and snow confined to very very few places and only then occasionally!I replace rotors along with the pads due to rust
not on the Hondas I have owned...Brakes were always good...
Hence the use of the term “comparatively”
I’m not saying Japanese cars have poor brakes, it’s just that euro stuff tends to have an extra sharp cold bite and better resistance to fade in extreme conditions - the sort of driving you’d rarely encounter legally in the US or Australia!It’s just a different engineering philosophy for want of a better word.
Yes, but then it seems every native creature down there is capable of killing you. Plus you drive on the wrong side of the road. Up in my parts, winter only lasts 11 months of the year, and skeeter season only another 4 more, plus a couple months of mud season, the rest of the year isn't so bad. And only some of the people here drive on the wrong side of the road.
We don’t have bears or cougars or millions of people with guns, so despite the reputation it’s pretty chill hereYes, but then it seems every native creature down there is capable of killing you. Plus you drive on the wrong side of the road. Up in my parts, winter only lasts 11 months of the year, and skeeter season only another 4 more, plus a couple months of mud season, the rest of the year isn't so bad. And only some of the people here drive on the wrong side of the road.
I’m way down south away from the tropics and the crocodiles, so we have some tiger snakes and bogans (Aussie for redneck) and that’s about it!
Oddly though I sorta agree with the wrong side of the road… Born and raised here, but every time I go to the US or Europe I find the whole right side of the road driving thing totally natural and I make way more mistakes when I come home!! Very weird…
When the pads are done, I’ll change these out.
Yep, they’ve earnt their keep!
I know some cougars who own guns, they're pretty nice people to hang out with...
Not sure why, braking surface looks pretty smooth to me. Those can't be more than a couple years old, plenty of life left.
My 2012 Civic made it 90,000 miles with the original rotors and my Corvette is still going strong at 81,000. Hybrids and EV's last a lot longer.
EVs even have rust problems from not enough use! One of the reasons VW cited for putting drum brakes on the id3 and id4 etc - weather resistant!
I agree; noticed that on Tesla recently.
I had a car with 518K miles when I retired it. Rotors were changed one time because one of them warped. The rotors on one of my current cars has 220K miles. Rotors have never been turned and brakes are working fine. Unlike some people I don't worry that the rotors are perfectly true new pads will wear to the old rotors over a few thousand miles.
I’ve got cars that the rotors were technically undersize at 35,000 kms (not miles).
Like I said, it entirely depends on the vehicle type and use.
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