1.5 D (TUD5) engine: faults and reliability

• 1.4 D 50 hp (TUD3Y, 1993-1994 on the 106)

  1993–1994 · 50 hp · TUD3Y, K9Y

  With caution

  Caradisiac warns of a possible cylinder head gasket issue from 100,000-130,000 km and of excessive oil consumption up to July 1993 caused by a ring problem; L'argus recommends avoiding the 106's 1.4 D. Only buy it with the cylinder head gasket verified.^[1][3]

• 1.5 D 54-58 hp (TUD5: VJZ, VJY and VJX, 1994-2003)

  1994–2003 · 54–58 hp · TUD5, TUD5Y, VJX, VJY, VJZ

  With caution

  Oil leaks from the cylinder head gasket and the crankshaft seal mainly affect cars built before July 1998, when Caradisiac places the definitive gasket on the 106; in fiches-auto's statistics the engine has few faults, and the most frequently repeated issue is the clutch.^[1][7][8]

Buy: No known serious faults, or they have already been corrected, in this version. With caution: Worth buying if something specific is verified: history, a replaced part or a completed campaign. Avoid: High risk of a serious fault that is hard to check for or prevent.

1. 1Medium severityFrequency: OccasionalCylinder head and blockOil leaks from the cylinder head gasket and crankshaft sealOn PSA's 1.4 D and 1.5 D the cylinder head gasket can leak oil (on the 1.4 D, with a risk of failure from 100,000 km), and the crankshaft seal on the timing side leaks on the early 1.5 Ds. It was corrected in stages up to July 1998.
2. 2Medium severityFrequency: RareInjectionInjection pump: high idle and leaksOn the early 1.5 Ds the idle could stay too high and require an adjustment of the injection pump (cars built before January 1997 on the Saxo and before June 1997 on the 106). Less commonly, the pump leaks diesel at high mileage.
3. 3Low severityFrequency: RareIgnitionGlow plug faults: corroded connector and glow plugsOn the 106 with the 1.5 D built between March 1996 and November 1997 there were glow plug faults caused by the gradual corrosion of a connector, not by the glow plugs; dealers corrected them at service visits. On the Saxo, owners also cite the glow plug control box and the glow plugs.

Severity colours: low, medium, high, critical. How we rate them

Manufacturer

PSA Peugeot Citroën

Family

TU (TUD)

Fuel

Diesel

Displacement

—

Cylinders

4

Fuel system

Naturally aspirated

Injection

Indirect injection

Timing

Timing belt (dry)

Power

50–58 hp

Peak torque

100 Nm

Production

1988–2004

Makes

Peugeot and Citroën

Technical data^[4][5][6]

1. 1993–1994

   1.4 D 50 hp (TUD3Y, 1993-1994 on the 106)

   1,360 cc, 50 hp version fitted to the Peugeot 106 with a Bosch VP 20 injection pump and no catalytic converter. The TUD3 was introduced in 1988 with the TU3's aluminium block and reinforced wet liners, and Wikipedia describes it as prone to early cylinder head gasket failures.^[4][5]

2. 1994–2003

   1.5 D 54-58 hp (TUD5: VJZ, VJY and VJX, 1994-2003)

   1,527 cc with iron block and aluminium cylinder head, which replaced the TUD3 in 1994 and, according to Wikipedia, resolved its cylinder head gasket failures. In the 106, Wikipedia (de) gives 57 hp with catalytic converter between 1994 and 1996 (VJZ), 54 hp Euro 2 until 2000 (VJY) and the VJX Euro 3 from October 2000; French listings say 58 hp.^[4][5][6]

• Timing kit

  • Buy part at Autodoc (affiliate link, opens in a new tab)

• Oil filter

  • Buy part at Autodoc (affiliate link, opens in a new tab)

• Air filter

  • Buy part at Autodoc (affiliate link, opens in a new tab)

• Diesel fuel filter

  • Buy part at Autodoc (affiliate link, opens in a new tab)

• Glow plugs

  • Buy part at Autodoc (affiliate link, opens in a new tab)