Glow Plug Glow plug heating the combustion chamber to improve cold starting in diesel engines Metzger "H1 368" - Not availableCITROËN - Berlingo, C4, C5; PEUGEOT - 308; FORD - Focus; VOLVO - S80; DS - DS 3; OPEL - Vivaro C; VAUXHALL - Vivaro C; ...