Kia Sportage Hybrid (MHEV) Tensioner Failure

The 1.6 CRDi diesel hybrid-electric Kia Sportage is a “mild hybrid”, its basically a regular diesel engine with a motor with an “upgraded” alternator and 48v battery pack that can also drive the engines timing pulley via a belt.

Kia (and Hyundai) vehicles with this engine and MHEV system have been plagued with failures due to the timing pulley being literally ripped off the engine of the crank. Various attempts have been made to revise the tensioner system to try and relieve strain on the timing pulley but the failures continue.

The Kia/Hyundai group still refer to this is a “Tensioner Issue” but in reality its a fundamental design flaw and the only true resolution would be to remove the MHEV system entirely.

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