VW T6 1(SG)

The CXEB is the 2.0 BiTDI with 150 kW — the most powerful diesel in this commercial vehicle, and simultaneously the most problematic. Piston rings with too few oil drain holes (2 instead of 4 like the successor CXEC) lead to progressive oil consumption and cylinder damage. Oil pump is marginal for sustained loads — turbo bearing damage follows. Recall 23Z7 worsens the situation (increased EGR timing on an already compromised engine). Cylinder head cracks add to the problem. Repair almost always means engine replacement (€12,000–21,000). Before purchase: compression test, oil consumption log for last 10,000 km, CO₂ test in coolant. Replaced from 2019 by the revised CXEC with 4-hole pistons.

• !! Defective Piston Rings: Blocked Oil Drain Holes from 90,000 km

  Piston rings have oil drain holes that are too small and become coked. Oil enters the combustion chamber and particles score the cylinder bore. Total engine failure frequently occurs between 80,000–130,000 km.

  Symptoms: Oil consumption over 1 L/500–1,000 km, blue smoke, power loss, continuous DPF regeneration
  12,000–21,000 $
  Ad piston rings CXEB BiTDIKurzmotor CXEB T6 204PS
• !! Small Turbocharger: Bearing Failure and Oil Ingestion from 80,000 km

  The small turbocharger bearing fails prematurely. Oil is drawn through the intercooler into the intake. Intercooler, DPF and catalytic converter become contaminated.

  Symptoms: Blue smoke, power loss, DPF overfill, whining from turbocharger
  2,000–4,000 $
  Ad turbocharger klein CXEB BiTDI T6Turbine 2.0 BiTDI 204PS T6
• !! Cylinder Head Cracks from EGR Overheating from 100,000 km

  Cracks in the cylinder head arise through recall 23Z7 and the design of the high-pressure EGR system. VW revised the part number (041 103 403 A → M).

  Symptoms: Falling coolant level, white smoke, overheating warning
  2,000–5,000 $
  Ad cylinder head CXEB T6 BiTDI041103403M cylinder head T6

+ 4 more engine weaknesses + vehicle weaknesses

The CXEC is the revised BiTDI — 146 kW with new 4-hole piston design that eliminates the notorious oil consumption of the CXEB. No documented case of piston ring failure on the CXEC. Cylinder head cracks remain as an EA288 family trait (documented from 78,000 km). Biturbo system can leak oil through the shaft seal. EGR coking less pronounced than predecessors (not affected by recall 23Z7, built from 2019). Overall a significantly more reliable BiTDI than the CXEB — paying the premium for a post-2019 commercial vehicle avoids the biggest risk of this range.

• !! Biturbo Unit Leaks Oil Through Shaft Seal from 100,000 km

  In the CXEC BiTDI (146 kW), turbocharger shaft seals leak oil into the intake. Oil contaminates the intercooler and DPF. Repair was at times not possible without VW OEM parts since originals were unavailable.

  Symptoms: Power loss, limp mode, clearly elevated oil consumption, bluish smoke, oil leaking from turbocharger visible
  2,000–8,000 $
  Ad turbocharger CXEC T6.1 BiTDI 199PSWellendichtring Turbo CXECreplacementturbo 2.0 BiTDI T6.1
• !! Cylinder head cracks — coolant loss from 80,000 km

  Hairline cracks in the cylinder head cause internal coolant loss without visible leak — documented from 78,000 km. Head replacement €2,500–5,500.

  Symptoms: Coolant level drops without visible leak, overheating, white exhaust plume.
  2,500–5,500 $
• !! Residual Piston Ring Oil Consumption Risk from 120,000 km

  Revised version of the CXEB with improved piston rings. Generally rated as problem-free in forums. High risk only with short-trip use and excessively long oil change intervals.

  Symptoms: Oil consumption over 0.5 L/1,000 km, occasional blue smoke
  1,500–6,000 $
  Ad piston rings CXEC BiTDIoil control ringe 2.0 BiTDI 199PS

+ 2 more engine weaknesses + vehicle weaknesses

The CXGA is the weakest EA288 diesel in this commercial vehicle at 62 kW — the modern successor to the EA189 base. Wet timing belt instead of chain — change interval 210,000 km, but accelerated wear with poor oil. EGR coking remains the persistent theme, worsened by recall 23Z7 (changes EGR timing). NOx sensor occasionally triggers false alarms (P20EE). Adequate for light city delivery, but constantly at the limit on highways.

• !! EGR Valve Coked Up — Worsened by Recall 23Z7 from 100,000 km

  The high-pressure EGR in the EA288 T6 is put under more stress by recall 23Z7, accelerating coking. Valve permanently jams open.

  Symptoms: Engine warning light, power loss, limp mode, juddering
  300–1,500 $
  Ad EGR valve CXGA T6EGR-radiator T6 TDI
• !! Recall 23Z7: EGR Recalibration

  KBA recall 23Z7 affects T6 EA288 up to model year 2017. Software alters EGR control and thermal window. Drivers report more EGR failures after the update.
• !! Particulate Filter Blocked by Short-Trip Driving from 120,000 km

  The CXGA 2.0 TDI (62 kW, VW T6/T6.1) tends toward DPF clogging with frequent short-trip driving since exhaust temperatures for active regeneration are rarely sufficient. A damaged DPF from substrate breakage causes power loss and fault codes.

  Symptoms: DPF warning light, power loss, juddering, fault message particulate filter damaged, increased consumption
  800–2,000 $
  Ad particulate filter DPF CXGA T6 2.0 TDI 85PSDPF VW Transporter T6 62kWDieselparticulate filter T6.1

+ 3 more engine weaknesses + vehicle weaknesses

The CXGB delivers 75 kW from the EA288 block — the stronger base variant in this commercial vehicle. Technically identical to the CXGA, same weaknesses: EGR coking, DPF on short trips, NOx sensor, recall 23Z7. Slightly better suited for mixed use than the CXGA due to higher output. Wet timing belt lasts long with proper oil, but not "lifetime."

• !! EGR Valve Coked Up — Worsened by Recall 23Z7 from 100,000 km

  Identical high-pressure EGR design as all T6 EA288. Recall 23Z7 increased cycling and thermal stress.

  Symptoms: Engine warning light, power loss, limp mode, juddering
  300–1,500 $
  Ad EGR valve CXGB T6 75kWEGR valve EA288 T6
• !! Recall 23Z7: EGR Recalibration

  KBA recall 23Z7 affects T6 EA288 up to model year 2017. After update, increased EGR frequency; more EGR failures reported in forums.
• !! Particulate Filter Blocked by Short-Trip Driving from 120,000 km

  With the CXGB 2.0 TDI (75 kW, VW T6/T6.1), short-trip driving causes incomplete DPF regeneration due to insufficient exhaust temperatures. A clogged or damaged particulate filter causes power loss and elevated emissions.

  Symptoms: DPF warning light, power drop, juddering especially under load, particulate filter fault codes
  800–2,000 $
  Ad DPF particulate filter CXGB T6 2.0 TDI 102PSparticulate filter VW T6 75kWdiesel particulate filter Transporter CXGB

+ 3 more engine weaknesses + vehicle weaknesses

The CXFA is the best-selling engine in this commercial-vehicle series — 110 kW from the EA288 is the sweet spot for transport and camper use. EGR coking is the persistent theme (fault codes P0101/P046C), worsened by recall 23Z7. Cylinder head cracks documented (from 78,000 km!) — coolant loss without visible leak is the warning sign. DPF needs highway driving, NOx sensor causes occasional trouble. Unlike the BiTDI CXEB, no systematic piston ring problem. A reliable long-distance engine with consistent maintenance and occasional highway runs.

• !! Cylinder Head Cracks: Coolant Loss from 100,000 km

  VW changed the cylinder head (041 103 403 A → 041 103 403 M). Thermal overload cracks cause internal coolant loss without visible external leaks.

  Symptoms: Falling coolant level without visible leak, white smoke from exhaust, overheating warning
  1,500–4,000 $
  Ad cylinder head CXFA T6cylinder head 041103403M T6 TDI
• !! High-pressure fuel pump failure — metal shavings in fuel system from 80,000 km

  The HPFP can fail without warning, sending metal shavings into injectors and rail — the entire fuel system must be replaced.

  Symptoms: Sudden power loss, engine dies, metallic noises, limp mode.
  3,000–11,000 $
• !! EGR Valve Coked Up — Faults P0101/P046C/P0402 from 150,000 km

  The CXFA 150 hp is known for EGR problems in the T6. Valve permanently sticks at around 150,000 km. Complete replacement of cooler, pipes, and gaskets needed (approx. 850 € parts plus labour).

  Symptoms: Engine warning light, juddering, power loss, limp mode
  850–1,550 $
  Ad EGR valve CXFA T6 150PSEGR-radiator EA288 110kW T6

+ 4 more engine weaknesses + vehicle weaknesses

The CXGC is the mid-range diesel in this commercial vehicle at 84 kW — the compromise between base and main engine. EGR coking as the primary theme, additionally EGR cooler cracking documented. DPF clogs in city-only operation. Recall 23Z7 also affects the CXGC. Power is just adequate for the loaded vehicle — regular highway users should step up to the CXFA.

• !! EGR Valve Coked Up — Worsened by Recall 23Z7 from 100,000 km

  Identical design to CXGA/CXGB. High-pressure EGR more heavily stressed by recall 23Z7. Premature coking and jamming known.

  Symptoms: Engine warning light, limp mode, power loss, juddering
  300–1,500 $
  Ad EGR valve CXGC T6 84kWEGR-radiator EA288 T6
• !! Particulate Filter Blocked by Short-Trip Driving from 120,000 km

  The CXGC 2.0 TDI (84 kW, VW T6.1) is susceptible to DPF clogging with short-trip driving like the entire CXG family. High ash loading prevents effective regeneration. Damaged substrate shows as fault code and juddering under load.

  Symptoms: DPF fault code, DPF ash content too high, juddering on acceleration, engine warning light
  800–2,000 $
  Ad DPF CXGC T6.1 2.0 TDI 114PSparticulate filter VW Transporter 84kWDPF Substrat defekt T6.1
• !! EGR Cooler Cracking from 100,000 km

  Like all EA288 T6 engines, the CXGC shows EGR cooler cracking leading to coolant loss. The 23Z7 software update increased EGR rate and accelerates thermal stress.

  Symptoms: Coolant loss, white smoke, EGR fault code, engine protection mode
  400–1,200 $
  Ad EGR radiator CXGC T6 TDIEGR radiator VW T6 EA288 90PS

+ 3 more engine weaknesses + vehicle weaknesses

The CJKB is an EA888 Gen2 with 2.0 liters and 110 kW — the weaker TSI in the transporter range. Timing chain rattles on cold start from around 100,000 km (improved from 2014). Oil consumption from thin piston rings is typical for EA888. In heavy transporter use, oil quality degrades faster than in a passenger car — shorter oil change intervals (max 15,000 km) are mandatory. Water pump with plastic housing leaks from 120,000 km. No port injection in this specification — intake valve carbon buildup therefore more pronounced than in newer port-injected variants. An adequate engine that rewards consistent maintenance.

• !! Turbo bearing damage from oil degradation under sustained load from 100,000 km

  In heavy Transporter use, oil quality degrades faster than in passenger cars — turbo and crankshaft bearings are damaged with neglected oil changes. Shorten oil change interval to max 15,000 km in T5/T6 operation.

  Symptoms: Turbo noise at full load, engine oil pressure warning, power loss
  400–900 $
  Ad oil pump EA888 T6oil pump CJKB
• !! Crankshaft bearings sensitive to oil pressure loss from 80,000 km

  The CJKB 2.0 TSI (VW T5.2) is extremely sensitive to brief oil pressure drops. Even a few hundred metres without adequate oil pressure — for example from the wrong oil filter — can permanently damage the crankshaft bearings. Bearing shells are less robust than on the CHHA/CHHB.

  Symptoms: Oil pressure warning light, metallic rattling under acceleration, unusual noise in the low RPM range
  2,500–7,000 $
  Ad Lagerschalen crankshaft CJKBconnecting rod bearingschale 2.0 TSI T5crankshaftnlager VW T5 CJKB
• !! Timing chain: rattling on cold start from 50,000 km

  Stretched timing chain and faulty chain tensioner generate metallic rattling on cold start. VW revised the tensioner and chain from a specific chassis number. Late consequence: chain skip.

  Symptoms: Metallic rattling in the first 10–15 seconds after cold start
  800–1,200 $
  Ad timing chain CJKBchain tensioner 2.0 TSI T6

+ 2 more engine weaknesses + vehicle weaknesses

The CJKA is the stronger EA888 Gen2 TSI with 150 kW — the top petrol engine in the transporter range. Same block as the CJKB but more boost pressure and correspondingly higher stress. Timing chain, oil consumption, and water pump same as on the CJKB. Intake valve carbon buildup from direct injection only — walnut blasting every 80,000–100,000 km advisable. Turbo bearings sensitive to neglected oil changes, especially when towing. A powerful but significantly more maintenance-intensive engine in heavy commercial use than in a light passenger car.

• !! Turbocharger bearing damage from oil pressure drop from 120,000 km

  In the 150 kW variant the oil pump is borderline under high load. Frequent full-load operation without a warm-up phase promotes turbocharger bearing wear.

  Symptoms: Whistling from the turbocharger, power loss, blue smoke
  1,200–2,500 $
  Ad turbocharger CJKA 2.0 TSITurbolager EA888 150kW
• !! Timing chain: rattling on cold start from 50,000 km

  Same chain tensioner fault as the CJKB. Without repair, chain skip with total engine damage is possible.

  Symptoms: Rattling on cold start for 10–15 seconds
  800–1,200 $
  Ad timing chain CJKAchain tensioner 2.0 TSI 150kW
• !! Carbon deposits on intake valves from 80,000 km

  As a direct-injection engine the CJKA 1.4 TSI does not wash the intake valves with fuel. Crankcase ventilation gases deposit as hard carbon film on the valve heads and noticeably reduce cylinder filling. Carbon build-up accelerates with short-trip driving.

  Symptoms: Rough idle, power loss at low RPM, cold-start stumbling, increased fuel consumption
  300–600 $
  Ad intake valve cleaning 1.4 TSI CJKAWalnut Blasting 1.4 TSIintake manifold cleaning VW 1.4 TSI

+ 3 more engine weaknesses + vehicle weaknesses