Engine & fuel system
3 documented faults — symptoms, causes and workshop fixes.
Engine malfunction indicator lamp (MIL) illuminated
Overview
- Affects
- All models with Diesel engines.
- Fault codes
P0237P0238P2562P2563
Symptoms
Lack of power. Possible trouble codes stored: P0237, P0238, P2562, P2563. Whistling noise from engine. White smoke coming from exhaust.
Cause
Turbocharger (TC) control pressure sensor faulty.
Internal failure of turbocharger (TC).
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Replace turbocharger (TC) and turbocharger (TC) control pressure sensor.
Data: Motorwise Workshop. Bulletin 9.
Engine coolant leak from intake manifold area
Overview
- Affects
- All models with 1.6/2.0 Diesel engines, →10/09.
- Parts
- 4 parts
Cause
Intake manifold gasket failure due to Diesel fuel contamination.
Repair
- Pressure test cooling system.
- If coolant leak from area indicated: Replace black intake manifold gaskets with modified green gaskets.
Parts4 parts
| Part | Part number | Qty |
|---|---|---|
| Intake manifold gasket kit | 71754211 | 1 |
| Nut | 55192175 | 9 |
| Collar - 1,6 | 71714117 | 2 |
| Collar - 2,0 | 71714118 | 1 |
Data: Motorwise Workshop. Bulletin 10.
Coolant leak in area of exhaust gas recirculation (EGR) cooler
Cause
Exhaust gas recirculation (EGR) cooler housing cracked/broken.
Repair
- Fit modified EGR cooler housing.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| EGR cooler housing | 71772987 | 1 |
Data: Motorwise Workshop. Bulletin 11.
Electrical & ignition
3 documented faults — symptoms, causes and workshop fixes.
Intermittent self-activation of alarm system siren
Cause
Alarm system in car movement sensors faulty.
Repair
- Fit new alarm system in car movement sensors.
Data: Motorwise Workshop. Bulletin 4.
Alarm/central locking will not operate, but doors can be unlocked with key
Overview
- Affects
- All models, →VIN 7092553.
- Remedy
- Fit new part
- Parts
- 1 part
Cause
Transponder key not recognised.
Repair
- Check remote control battery, replace as required.
- Fit new ignition switch control module.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Ignition switch control module | 156061620 | 1 |
Data: Motorwise Workshop. Bulletin 5.
Rear electric windows not operating
Cause
Failure of window winder mechanism.
Repair
- Fit modified window winder mechanisms as necessary.
Parts2 parts
| Part | Part number | Qty |
|---|---|---|
| Window winder mechanism - LH | 71769766 | 1 |
| Window winder mechanism - RH | 71769765 | 1 |
Data: Motorwise Workshop. Bulletin 7.
Brakes
2 documented faults — symptoms, causes and workshop fixes.
ABS warning lamp illuminated
Overview
- Affects
- All models, →VIN 7097552.
- Fault codes
C1275- Remedy
- Fit new part
- Parts
- 2 parts
Symptoms
Electronic stability program (ESP) warning lamp illuminated. Trouble code stored: C1275 (ABS solenoid valve, frequent activation).
Cause
ABS/ESP control module software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Fit new ABS/ESP control module.
Parts2 parts
| Part | Part number | Qty |
|---|---|---|
| ABS/ESP control module - except 3,2 AT | 71748766 | 1 |
| ABS/ESP control module - 3,2 AT | 71748767 | 1 |
Data: Motorwise Workshop. Bulletin 2.
Electronic stability program (ESP) warning lamp illuminated
Symptoms
Trouble code stored: C1131 (ABS brake fluid pressure sensor, implausible signal).
Cause
Faulty ABS brake fluid pressure sensor, located in ABS hydraulic modulator.
Repair
- Fit new ABS hydraulic modulator.
Data: Motorwise Workshop. Bulletin 3.
Suspension & drivetrain
1 documented fault — symptoms, causes and workshop fixes.
Creaking noise from rear suspension over uneven surfaces
Rear shock absorbers worn. Fix: fit a new part.
Overview
- Affects
- All models, VIN →7069784 (except 2.4D JTD/3.2JTS).
- Remedy
- Fit new part
Repair steps
- Remove rear suspension struts.
- Thoroughly clean all mating surfaces.
- Fit new rear shock absorbers and suspension springs.
Parts
| Part | Part number | Qty |
|---|---|---|
| Shock absorber | 50706476 | 2 |
| Suspension spring | - | 2 |
Data: Motorwise Workshop. Bulletin 1.
Air conditioning & heating
1 documented fault — symptoms, causes and workshop fixes.
Erratic AC compressor operation
Symptoms
Air conditioning (AC) inefficient when ambient air temperature is high.
Cause
AC receiver/drier faulty.
Repair
- Fit modified AC receiver/drier.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| AC receiver/drier | 71748263 | 1 |
Data: Motorwise Workshop. Bulletin 6.
Wipers & visibility
1 documented fault — symptoms, causes and workshop fixes.
Rear screen washer not working
Symptoms
Water ingress into front footwells. Water ingress into load area. Water ingress into rear of passenger compartment.
Cause
Rear screen washer pipe split.
Repair
- Operate rear screen washer to pin-point leak. Repair rear screen washer pipe as necessary using repair kit.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Rear screen washer pipe repair kit | 51922436 | 1 |
Data: Motorwise Workshop. Bulletin 8.
Glossary
Technical terms used in this guide.
- VIN
- Vehicle identification number — 17 characters, found at the base of the windscreen and on the V5C logbook
- ABS
- Anti-lock braking system — stops the wheels locking under hard braking
- EGR
- Exhaust gas recirculation — feeds some exhaust gas back into the intake to cut emissions
- Trouble Codes
- Standardised fault codes stored by the engine control module, read with a diagnostic tool
- AC
- Air conditioning — the system that cools the cabin
- ABS/ESP
- Anti-lock braking and electronic stability programme — the system that stops the wheels locking and keeps the vehicle stable
- ESP
- Electronic stability programme — brakes individual wheels to stop a skid
- TC
- Turbocharger — the exhaust-driven compressor that boosts engine power
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- EGR Cooler
- A heat exchanger that cools exhaust gas before it is fed back into the intake
- Intake Manifold
- The housing that distributes air into the cylinders
- Receiver/Drier
- The air-conditioning filter/dryer that removes moisture from the refrigerant
- Solenoid
- An electrically operated valve or actuator
- Trouble Code
- A standardised fault code stored by a control module, read with a diagnostic tool
- Recirculation
- Air-conditioning mode that recirculates cabin air instead of drawing in outside air
Frequently asked questions
What are the common faults with the Alfa Romeo 159 2.0 JTDM 16V?
This guide contains 11 workshop bulletins for the Alfa Romeo 159 2.0 JTDM 16V. Of these, three concern the engine and fuel system and three the electrical and ignition. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Alfa Romeo 159 2.0 JTDM 16V have these faults?
No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.
Can I check for Alfa Romeo 159 2.0 JTDM 16V faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.