SEAT Leon and Toledo TDi 90 and 110 hp Diesel — Technical Data Sheet AUTO-VOLT N°779

Technical data sheet AUTO-VOLT N°779 (June 2001) dedicated to the SEAT Leon (from October 1999) and Toledo (from April 1999) with 1.9 TDi 90 and 110 hp Diesel engines. Both models share the VAG platform (Golf IV, Bora, Audi A3, Skoda Octavia). Engine: 1,896 cc, 4-cylinder inline vertical transverse (inclined 30° rearward), cast iron block, aluminium head, single overhead camshaft with toothed belt; engine codes ALH/AGR (TDi 90) and AHF (TDi 110). Cooling: pressurised forced-circulation; thermostat opens at 85°C, full open at 105°C, stroke min 7 mm. Without A/C: single bi-speed fan via stepped thermocontact (100/60 W, 345 mm); with A/C: two bi-speed fans via thermal management ECU (left 250/60 W 345 mm, right 220/60 W 290 mm). Thermocontact: 1st speed on 92–97°C off 84–91°C; 2nd speed on 99–105°C off 91–98°C. Post-ventilation relay managed by ECU (AHF engines and all with A/C). Identification: VIN 17 characters stamped on bulkhead; type/engine number on front of block at gearbox joint face. Includes injection system details, EGR management, ABS with EBV and ESBS, detailed wiring diagrams and connector pinouts.