You are in a traffic jam, driving at walking speed. When is the least wear exerted on the clutch of your manual transmission vehicle?

In a traffic jam at walking speed, the best way to minimize clutch wear is to stay in a low gear and avoid unnecessary use of the clutch. This means driving without constantly pressing and releasing the clutch pedal, if possible. When you "ride" the clutch by slipping it (partially engaging it) or repeatedly starting and stopping, it causes excessive friction and heat inside the clutch, which leads to faster wear. So, holding the vehicle in a low gear and moving slowly without slipping the clutch reduces the mechanical stress and prolongs the clutch's lifespan. This is why option 1 is the correct method according to German driving principles.