EA855 or VW R5 engines

The Volkswagen EA855 5-cylinder engine series was first introduced in 2005. The units are designed for cars with a transverse engine and were installed in the US market. The second and subsequent generations of these engines were turbocharged and are known as 2.5 TFSI.

Atmospheric engines EA855

In 2005, the heir to the Audi EA828 series of inline 5-cylinder engines finally appeared, it turned out to be a family of naturally aspirated engines for cars sold in the US market. These were ordinary engines with a cast-iron block, a timing chain and a phase regulator only on the intake shaft.

In total, there were two versions of the motor, with a power of 150 and 170 hp, but a whole bunch of modifications:

• BGP (20v, distributed injection, 150 hp / 228 Nm);
• BGQ (20v, distributed injection, 150 hp / 228 Nm);
• BPR (20v, distributed injection, 150 hp / 228 Nm);
• BPS (20v, distributed injection, 150 hp / 228 Nm);
• BTK (20v, distributed injection, 150 hp / 228 Nm);
• CBTA (20v, distributed injection, 170 hp / 240 Nm);
• CBUA (20v, distributed injection, 170 hp / 240 Nm);
• CCCA (20v, distributed injection, 170 hp / 240 Nm).

EA855 2.5 TFSI engines

These engines really opened up in 2009 after being equipped with FSI injection and a turbine, so the 2.5 TFSI family, which is very popular among fans of charged models, appeared. The problematic timing chain drive was modernized, and a phase regulator appeared on the exhaust shaft.

• CEPA (20v, direct injection, 340 hp / 450 Nm);
• CEPB (20v, direct injection, 360 hp / 465 Nm);
• CTSA (20v, direct injection, 310 hp / 420 Nm);
• CZGA (20v, direct injection, 340 hp / 450 Nm);
• CZGB (20v, direct injection, 367 hp / 465 Nm).

Engines EA855 EVO 2.5 TFSI

In 2016, the 2.5 TFSI powertrains were significantly redesigned to reduce weight. The cast-iron block was replaced with aluminum and a lightweight connecting rod and piston group appeared. The intake camshaft was equipped with the Audi Valvelift System or AVS valve control system.

At the moment, there are two modifications of such a unit, with and without a particulate filter:

• DNWA (20v, direct injection, 400 hp / 480 Nm);
• DAZA (20v, direct injection, 400 hp / 480 Nm).