NHTSA Complaint #11376251 — 2020 MERCEDES-BENZ GLE 580

I PURCHASED A GLE 580 IN JANUARY 2020 WITH STANDARD 20-INCH WHEELS AND TIRES ON THE FRONT AND REAR. THIS TIRE/WHEEL COMBINATION IS AN AVAILABLE OPTION ON THE GLE 350, GLE 350 4MATIC AND GLE 450 4MATIC. THE OPERATOR'S MANUAL FOR ALL 2020 GLE MODELS (AND PRESUMABLY FOR EARLIER MODELS) STATES: 1.ROTATE FRONT AND REAR WHEELS ONLY IF THE WHEELS AND TIRES ARE OF THE SAME DIMENSIONS. 2.ON VEHICLES THAT HAVE THE SAME SIZE FRONT AND REAR WHEELS, ROTATE THE WHEELS ACCORDING TO THE INTERVALS IN THE TIRE MANUFACTURER'S WARRANTY BOOK IN YOUR VEHICLE DOCUMENTS. IF THIS IS NOT AVAILABLE, ROTATE THE TIRES EVERY 3,000 TO 6,000 MILES (5,000 TO 10,000 KM), DEPENDING ON THE WEAR. THE FRONT AND REAR WHEELS ARE INDISTINGUISHABLE FROM ONE ANOTHER AND NEITHER IS MARKED 'FRONT ONLY' OR 'REAR ONLY.' BY CHANCE, I DISCOVERED THE REAR WHEELS HAVE AN OFFSET THE FRONT WHEELS DO NOT HAVE, WHICH PLACES THE REAR WHEELS FURTHER OUTBOARD THAN THE FRONT WHEELS. THE OFFSET MAKES ROTATING THE TIRES DANGEROUS. ONLY AFTER I DISCOVERED THIS ISSUE DID MERCEDES TELL ME, 'DUE TO THE DESIGN OF THE DRIVETRAIN, THE FRONT AND REAR WHEELS HAVE DIFFERENT OFFSETS, OFFSET IS THE DISTANCE FROM THE HUB OF THE WHEEL TO THE CENTER LINE OF THE WHEEL. IF YOU PUT THE FRONT TIRE/WHEELS IN THE BACK, IT WILL SIT FURTHER IN AND CAN AFFECT THE HANDLING OF THE VEHICLE.' HOWEVER, THE OPERATOR'S MANUAL STATES TIRES AND WHEELS OF THE SAME SIZE FRONT AND REAR SHOULD BE ROTATED. THIS OFFSET IS NOT SOMETHING ONE WOULD EXPECT WITH TIRES AND WHEELS OF THE SAME SIZE. I ASKED MERCEDES BENZ TO AGREE TO CORRECT THE OPERATOR'S MANUAL FOR GLE MODELS AFFECTED BY THIS OFFSET AND TO SEND NOTIFICATION OF THE OFFSET ISSUE TO VEHICLE OWNERS AND IT DECLINED MY REQUEST. THIS OFFSET POSES A SAFETY RISK IF GLE OWNERS WITH 20-INCH WHEELS ROTATE THEIR TIRES IN ACCORDANCE WITH THE INSTRUCTIONS IN THE OPERATOR'S MANUAL.