Engine block heater install – any block mods needed?
Want to fit a block heater to my diesel for winter starts. 2014 Crafter 2.0 TDI. Some say drill and tap, others magnetic. Any experience with in-block types? Worried about warranty or leaks.
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Magnetic/pad heaters are easiest- no mods, just stick on block exterior. In-block (freeze plug or threaded) give better heat transfer but require access. On Crafter, side freeze plug types are popular- remove plug, install heater with sealant. I fitted a threaded one last winter- drilled/tapped carefully per kit, no leaks. If doing in-block, check block thickness. For parts like seals/gaskets if disturbing area, saw some block plugs and related bits at https://elartcom.eu/categories/engine-block-and-crankshaft-141 - they have core plugs and seals for VW Crafter engines. Used matching plug after install. Starts way easier in cold, less white smoke. Magnetic easier if unsure. Their category helps if you need block spares during work.