Skoda Octavia Turbo

On the Octavia, the same quoted power output can conceal two incompatible turbos

This is the case across several engine variants on this page: two Octavias showing the same engine capacity and the same power output may require turbos with entirely different manufacturer references. Only the engine code stamped on the block can unambiguously identify the correct reference for a given vehicle.

This collection covers twelve Skoda Octavia engine variants, from the 1.9 TDI 90 to the 2.0 TDI 170 on the diesel side, plus the 1.6 TDI 105, the 1.4 TSI 140/150 and the 1.8 T RS 180 on the petrol side, representing more than forty distinct engine codes.

Diesel: three 1.9 TDI families and two generations of 2.0 TDI

The 1.9 TDI variants fall into four engine code groups that do not share the same turbo: codes AGR / ALH (90 hp), AHF / ASV (110 hp, found in both the 100/110 hp and 110 hp variants depending on the generation), ASZ (130 hp) and BJB / BKC / BLS / BXE (105 hp). Confusing an AGR with a BKC simply because both are 1.9 TDI units is the most common identification mistake.

On the 2.0 TDI, the dividing line falls between codes AZV / BKD / BKP / CFHC / CLCB (136/140 hp), BMN / CEGA (170 hp, first variant), CFFA / CFFB (170 hp, second variant) and CKFC / CRMB / CYKA / DCYA / DFFA (150 hp). These four groups correspond to distinct turbo geometries; a variable-geometry turbo designed for a CEGA is not interchangeable with one for a BKD, even at the same power output. The 1.6 TDI 105 (engine code CAYC) is a standalone engine variant with its own turbo reference.

Petrol RS and TSI: new or reconditioned turbo depending on the engine variant

The 1.8 T RS 180 (codes APP, ARZ, AUM, AUQ, AWP, AWU, AWV, BKF, BNU, JAE) is the only engine variant in this collection available exclusively as a reconditioned turbo. The 1.4 TSI 140/150 (codes CHPA, CHPB, CPTA, CZDA, CZEA) is offered as a new turbo; these codes cover successive technical evolutions of the block, with wastegate turbos whose manufacturer references differ from one code to the next.

On the 1.9 TDI 105 (BJB, BKC, BLS, BXE), both options are available: new turbo and reconditioned turbo. Whichever option is chosen, the root cause of the failure — oil circuit contamination, a blocked EGR, or a faulty intake hose gasket — must be addressed before the replacement is fitted; failure to do so risks rapidly damaging the replacement turbo through oil starvation or particle ingestion.