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All diesel engines have heaters, which are activated during a cold start to facilitate starting, but also in some other situations. If they are faulty, the first thing you will notice is that the car is harder to start... How to check errors ➡️ • Engine light - what it means and why... #automobili #autoservis #autosos #dieselengine #mechanicsecrets This video covers the following questions and topics: 00:01 Introduction 00:32 What are heaters and why a diesel engine needs them 01:41 Symptoms of faulty engine heaters 01:46 Difficult ignition 02:02 Uneven operation while the engine is cold 02:33 White smoke from the exhaust 03:05 The heater light is on 03:46 DPF malfunction and EGR malfunction 04:25 Driving with faulty engine heaters 05:21 How much does it cost to replace a heater 06:03 Heater replacement - step by step 06:44 The heater light is on