From my experience, the car in front pulls away 5 inches then stops, repeat times x. So in a traffic queue the engine might stop & start many times and each time you only move forward a very short distance. The engine might as well just stay on.My 2019 Q7 does this as well. The engine stops and as the car in front pulls away, the engine restarts.
The BMW with (gps) adaption on the automatic gearbox, so, why not an adaptive stop/start system that recognises roundabouts ?
do they use stop-start in the USA where, obviously, they have to stop at junctions ? I assume not
Thats "City braking" lol.
Someone loaned me a Yaris which had that. It went off within 10 minutes after it kept going mental between parked cars and oncoming traffic. It's just asking to be rear ended.
Yeah, it's intelligent enough to stop activating in these situations.From my experience, the car in front pulls away 5 inches then stops, repeat times x. So in a traffic queue the engine might stop & start many times and each time you only move forward a very short distance. The engine might as well just stay on.
Mine doesn't kick in again unless you've gone over 10mph(?) since it last activated so unless you're living your life quarter mile at a time when the car in front moves you're safe.As annoying as the system is I just leave it switched on.
From my experience, the car in front pulls away 5 inches then stops, repeat times x. So in a traffic queue the engine might stop & start many times and each time you only move forward a very short distance. The engine might as well just stay on.
Mine doesn't kick in again unless you've gone over 10mph(?) since it last activated so unless you're living your life quarter mile at a time when the car in front moves you're safe.
Auto stop/start is only there to help the manufacturers pass emissions tests. It's not there to actually reduce emissions in real world situations and certainly not there to help the average person. Indeed it is likely to cause more wear long term on the engine, resulting in more maintenance.
Auto stop/start is only there to help the manufacturers pass emissions tests. It's not there to actually reduce emissions in real world situations and certainly not there to help the average person. Indeed it is likely to cause more wear long term on the engine, resulting in more maintenance.
...which then becomes jarring when the engine has to restart.It makes sitting at the lights a wonderfully silent affair.
On the test.Well it reduces CO2 output on the test, which means less fuel use. Quite simple.
On the test.
...which then becomes jarring when the engine has to restart.
On the test.
Are you suggesting that having the engine off uses more fuel?On the test.
Not at all. I'm suggesting that in the real world there might be increased fuel consumption due to the constant engine restarting. The test also doesn't look at what happens a few years later when the engine is older and worn. Where are the long term studies over the lifetime of the vehicle on emissions of fuel and (possible) additional maintenance?Are you suggesting that having the engine off uses more fuel?