I have had my two rear 313's replaced under warranty! Both were beginning to show corrosion damage dealer had no issues replacing them!
Alloys never had any kerb damage.
On Order - F32 440i Tanzanite Blue
Current - F30 335d X drive Black Sapphire
Previous - E92 330d LCI M Sport Alpine White - 2008 E92 325d M Sport - E87 120d M Sport - Mk5 Golf GTI - Ep3 Civic Type R