B6 Variant, compare every engine

All 5 variants in this chassis on one screen. Identical body, identical electronics, identical suspension. Everything below is a consequence of which engine is in the bay.

Full comparison

VariantYearsPowerTorqueFuelTransmissionsEconomyRiskIssuesWorst single repairBandGood buyVerdict
1.9 TDI BKC2005–2008105 PS250 Nmdiesel5-sp manual5–6R211€2,000€1,350€3,650€1,850Buy
1.4 TSI CAXA2007–2010122 PS200 Nmpetrol6-sp manual, 7-sp dry-clutch DSG/S tronic6.5–8R314€2,800€1,600€4,300€2,150Buy with conditions
2.0 TDI BKD2005–2008140 PS320 Nmdiesel6-sp manual, 6-sp wet-clutch DSG/S tronic5.5–6.8R313€2,000€1,650€4,650€2,250Buy with conditions
2.0 TDI CBAB2008–2010140 PS320 Nmdiesel6-sp manual, 6-sp wet-clutch DSG/S tronic5.2–6.5R414€3,000€2,000€5,400€2,650Caution
1.8 TFSI CDAA2007–2010160 PS250 Nmpetrol6-sp manual, 7-sp dry-clutch DSG/S tronic7–8.5R314€4,000€1,900€5,150€2,550Buy with conditions

Issue overlap by engine. The row that decides it

IssueCostBKCCAXABKDCBABCDAA
Excessive oil consumption (piston rings)€150€4,000····
Oil-pump balance-shaft drive failurewalk away€700€3,000····
Dry-clutch DSG mechatronic failure€1,200€2,800···
Timing chain tensioner failurewalk away€900€1,800···
DPF clogging and forced regeneration€250€1,800····
Timing chain and tensioner wear (1.4 TSI)walk away€700€1,600····
DQ250 wet-clutch DSG mechatronic and service neglect€700€1,500···
EGR cooler leak€400€1,000···
Pump-düse injector loom and injector wear€150€900····
Carbon buildup on intake valves€400€700···
Pump-duse injector loom chafing€150€450····

Only engine-differentiating issues are listed. 10 further issues apply to every engine in this chassis. Cooling, electrics, suspension and the gearbox, and are on the chassis page.

Cross-chassis comparison

To compare against a different chassis: an E92 335i against an E90 330d, say, use the general comparison tool, which takes up to four variants from anywhere in the database and encodes them in the URL so the comparison can be shared.