Volkswagen Golf Workshop Service and Repair Manuals

Notes:

• ◆ If large quantities of metal particles or other deposits (caused, for example, by partial seizure of the crankshaft or conrod bearings) are found in the engine oil when performing repairs, clean the oil passages thoroughly and renew the oil cooler in order to prevent further damage from occurring later.
• ◆ The oil level must not be above the max. mark - danger of damage to catalyst!

Checking oil pressure

Oil system capacity1):

     without oil filter 3.8 ltrs.
     with oil filter 4.3 ltrs.

     1)     Up-to-date figures:

=> Exhaust emissions test binder

Engine oil specifications:

Turbo Diesel:
Only use engine oil conforming to VW standard 50500.

Naturally aspirated Diesel:
Only use engine oil conforming to VW standard 50000, 50101, 502001) or 50500 or multi-grade oil to API-CD.

     1)     Only in conjunction with VW standard 50500

• Cap
• Gasket
• ◆ Renew if damaged
• Dipstick
• ◆ The oil level must not be above the max. mark!
• ◆ Area above shaded zone up to max. mark: Do not top up with engine oil!
• ◆ Oil level in shaded zone: Engine oil can be topped up
• ◆ Area min. mark up to shaded zone: Top-up engine oil
• Guide
• ◆ Pull off to extract oil

• Oil pressure switch (F22), 25Nm
• ◆ 0.3 bar switch: brown
  or 0.25 bar: blue
• ◆ Wiring: blue/black
• ◆ Checking => Page 17-8
• ◆ If sealing ring is leaking nip open and replace.
• Banjo bolt, 25 Nm
• Seal
• ◆ Renew
• To turbocharger
• ◆ Engine codes 1Z, AHU, AAZ, AFN, AVG, ALE
• 0.9 bar oil pressure switch (F1), 25 Nm
• ◆ Grey
• ◆ Wiring: yellow
• ◆ Checking => Page 17-8
• ◆ If sealing ring is leaking nip open and replace.

• Oil filter bracket
• 25 Nm
• Gasket
• ◆ Renew
• O-ring
• ◆ Renew
• Oil cooler
• ◆ Coat contact area to flange, outside the seal, with AMV 188 100 02
• ◆ Ensure clearance to adjacent components
• ◆ See note
  => Page 17-1
• 25 Nm
• Oil filter
• ◆ Loosen with strap wrench
• ◆ Tighten by hand
• ◆ Observe installation instructions on oil filter

• Gears
• ◆ Checking backlash
  => Fig. 1
• ◆ Checking axial clearance
  => Fig. 2
• Oil pump cover with pressure relief valve
• ◆ Opening pressure: 5.7...6.7 bar
• 10 Nm
• Sump
• ◆ Clean sealing surface before installing
• ◆ Engine codes AEY, AFN, AVG with oil sump cover
• ◆ Removing and installing oil sump cover
• Oil drain plug, 30 Nm
• 20 Nm
• ◆ Remove and install both rear bolts gearbox end with jointed spanner 3185

• Gasket
• ◆ Engine codes: 1Z, AHU, AEY, AFN, AVG, ALE
• ◆ Renew
• ◆ Before fitting gasket coat sump flange/cylinder block flange with "D2"
• Baffle plate
• Suction pipe
• ◆ Clean strainer if soiled
• Baffle plate
• ◆ Engine codes:1Y, AAZ
• ◆ With gasket
• ◆ Renew gasket if damaged
• 10 Nm
• ◆ Insert with AMV 188 100 02
• Oil spray jet
• ◆ For piston cooling

→ Fig. 1     Checking oil pump backlash

     New: 0.05 mm

     Wear limit: 0.20 mm

→ Fig. 2     Checking oil pump axial clearance

     Wear limit: 0.15 mm