EA180 or VW 1.7/1.9 engines

The Volkswagen EA180 1.9 TDI diesel engine family was produced from 1991 to 2006 and was installed on almost the entire very extensive model range of the German concern. In addition to 1.9-liter turbo engines, the lineup included atmospheric diesel engines of 1.7 and 1.9 liters.

Diesel engines EA180 1.9 TDI

In 1991, the units of the EA 180 family debuted on the fourth generation of the Audi 80 model, which differed from the EA086 predecessors by the presence of a direct fuel injection system. In addition to the Bosch VP37 electronically controlled high-pressure fuel pump, a flow meter appeared in these engines, and on the most powerful versions there is also a modern variable geometry turbocharger.

Otherwise, they were the same engines with a cast-iron block, an 8-valve aluminum cylinder head and an intermediate shaft that was common for this time, which rotated the oil and vacuum pump.

We know ten modifications of this power unit, we will list all of them in a single list:

• 1Z (90 hp / 202 Nm) for Audi 80 B4 (8C), VW Passat B4 (3A);
• AFN (110 hp / 232 Nm) for Audi A4 B5 (8D), VW Passat B5 (3B);
• AGR (90 hp / 210 Nm) for Audi A3 1 (8L), VW Golf 4 (1J);
• AHH (90 hp / 210 Nm) for Audi A4 B5 (8D), VW Passat B5 (3B);
• AHF (110 hp / 235 Nm) for Audi A3 1 (8L), VW Golf 4 (1J);
• AHU (90 hp / 202 Nm) for Audi A4 B5 (8D), VW Passat B5 (3B);
• ALE (90 hp / 210 Nm) for VW Golf 3 (1H), VW Polo 3 (6N);
• ALH (90 hp / 210 Nm) for Audi A3 1 (8L), VW Golf 4 (1J);
• ASV (110 hp / 235 Nm) for Audi A3 1 (8L), VW Golf 4 (1J);
• AVG (110 hp / 235 Nm) for Audi A4 B5 (8D), VW Passat B5 (3B).

Diesel engines EA180 1.7 and 1.9 SDI

In 1995, the family of power units was replenished with a whole galaxy of atmospheric diesel engines, which were distinguished by the absence of a flow meter, intercooler, turbine and its sensor valves. This naturally affected their reliability, since there was practically nothing to break in them.

In addition to 1.9-liter engines, this line included several 1.7-liter diesel engines:

• AHB (57 hp / 112 Nm) for VW Caddy 2 (9K);
• AHG (57 hp / 112 Nm) for VW Polo 3 (6N);
• AKU (60 hp / 115 Nm) for VW Polo 3 (6N);
• AEY (64 hp / 125 Nm) for VW Golf 3 (1H);
• AFF (75 hp / 150 Nm) for Audi A4 B5 (8D);
• AGD (64 hp / 124 Nm) for VW Polo 3 (6N);
• AGP (68 hp / 133 Nm) for VW Polo 3 (6N);
• AQM (68 hp / 133 Nm) for VW Polo 3 (6N);
• ASY (64 hp / 125 Nm) for VW Polo 4 (9N);
• ASX (64 hp / 124 Nm) for VW Polo 3 (6N);
• AYQ (64 hp / 128 Nm) for VW Caddy 2 (9K).

Already from the end of the 90s, such engines were gradually replaced by EA188 diesel engines with unit-injectors, until finally in 2006 (in a number of countries in 2010) they were finally taken out of production.