A well-maintained turbo can last as long as the engine it's fitted to. Most turbos that fail early are killed by something preventable: oil, dirt, heat or a fault elsewhere on the engine . Here's how ...

"Repair or replace?" is the wrong first question. The right one is: what actually failed, and why? Once you know that, the choice is usually obvious. First: is the turbo the problem at all? Many turbo...