Car gets temperature check (5)
I believe the answer is:
audit
'check' is the definition.
(an audit is an examination or check)
'car gets temperature' is the wordplay.
'car' becomes 'audi' (Audi is a German car brand).
'gets' is a charade indicator (letters next to each other).
'temperature' becomes 't' (abbreviation).
'audi'+'t'='AUDIT'
(Other definitions for audit that I've seen before include "Investigate" , "Verify accounts" , "Formally examine" , "vetting of books" , "Examine accounts" .)