Fill the radiator with coolant and attach a radiator cap tester.

Lexus IS250 IS220d GSE20 ALE20 2AD-FHV COOLING

Lexus IS250 IS220d GSE20 ALE20 2AD-FHV COOLING

Align the baffle with the protruding part of the tail exhaust pipe assembly as shown in the illustration.

Remove the 4 bolts and rear No. 1 floor panel brace.

Lexus IS250 IS220d GSE20 ALE20 4GR-FSE EXHAUST

Install the tail exhaust pipe assembly with the 4 exhaust pipe supports.

Remove the No. 1 floor under cover and No. 2 floor under cover.

Lexus IS250 IS220d GSE20 ALE20 2AD-FHV EXHAUST

Remove the 2 nuts and V-bank cover.