Code letters, allocation, gearbox ratios, oil capacity — VW

Code letters, allocation, gearbox ratios, oil capacity on VW: factory workshop procedure. Full factory text, tools and checks.

Workshop procedure for VW — the factory write-up, straight from real workshop data.

factory workshop text

📋 Procedure

4 speed manual gearbox 091/I

Code letters · DT · 4D · DU · 5D · DY · 6D
Manufactured · from: / to: · 10.82 / 07.84 · 10.82 / 07.84 · 10.82 / 07.84 · 10.82 / 07.84 · 10.82 / 02.84 · 10.82 / 02.84
Allocation · Model · Volkswagen Transporter, Caravelle
Engine · 1.0 ltr. 41 kW 44 kW · 1.9 ltr. 57 kW 63 kW · 1.6 ltr. 37 kW Diesel
Ratios · Final drive · 32 : 7 = 4.57 · 34 : 7 = 4.86 · 41 : 7 = 5.86
Z2: Z1= i · 1st gear · 34 : 9 = 3.78
2nd gear · 33 : 16 = 2.06
3rd gear · 63 : 50 = 1.26
4th gear · 52 : 61 = 0.85
Reverse · 33 : 9 = 3.67
Oil capacity (litres) · 3.0 · 4.0
Specification1) · Gear oil GL 4 (MIL-L 2104) SAE 80
Clutch control · Hydraulic
Clutch plate dia. · 228 mm · 215 mm
Drive flange dia. · 100 m
Tyres: dynamic roll circumference · 1.97 m
Overall ratio in top gear · 3.89 · 4.14 · 4.99
Speed in top gear at 1000 rpm · 30 km/h · 29 km/h · 24 km/h
Remarks · M 220 · M 220 · M 220

M 220: Limited slip differential

1)
Only use gear oil to Ford specification M 2 C 104 A in gearboxes with a limited slip differential.

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Code letters · ACP · ACR · ABF
Manufactured · from: / to: · 03.84 / 07.84 · 03.84 / 08.84 · 08.84 / 12.86
Allocation · Model · Volkswagen Transporter, Caravelle
Engine · 1.6 ltr. 37 kW Diesel
Ratios · Final drive · 35 : 6 = 5.83
1st gear · 34 : 9 = 3.78
2nd gear · 33 : 16 = 2.06
3rd gear · 63 : 50 = 1.26 · 49 : 40 = 1.23
4th gear · 52 : 61 = 0.85 · 41 : 48 = 0.85
Reverse · 33 : 9 = 3.67
Oil capacity (litres) · 4.0
Specification1) · Gear oil GL 4 (MIL-L 2104) SAE 80
Clutch control · Hydraulic
Clutch plate dia. · 215 mm
Drive flange dia. · 100 m
Tyres: dynamic roll circumference · 1.97 m
Overall ratio in top gear · 4.97 · 4.98
Speed in top gear at 1000 rpm · 24 km/h
Remarks · M 220

M 220: Limited slip differential

1)
Only use gear oil to Ford specification M 2 C 104 A in gearboxes with a limited slip differential.

Code letters · ABB · ABD · ABH
Manufactured · from: / to: · 08.84 · 08.84 · 01.85
Allocation · Model · Volkswagen Transporter, Caravelle
Engine · 1.9 ltr. 41 kW 44 kW · 1.9 ltr. 57-63kW · 1.6 ltr. 51 kW Turbo-Diesel
Ratios · Final drive · 32 : 7 = 4.57 · 29 : 6 = 4.83 · 33 : 6 = 5.502)
Z2: Z1= i · 1st gear · 34 : 9 = 3.78
2nd gear · 33 : 16 = 2.06
3rd gear · 49 : 40 = 1.23
4th gear · 41:48 = 0.85 · 39 : 50 = 0.78
Reverse · 33 : 9 = 3.67
Oil capacity (litres) · 3.0 · 4.0
Specification1) · Gear oil GL 4 (MIL-L 2104) SAE 80
Clutch control · Hydraulic
Clutch plate dia. · 228 mm · 215 mm
Drive flange dia. · 100 m
Tyres: dynamic roll circumference · 1.97 m
Overall ratio in top gear · 3.90 · 4.12 · 4.29
Speed in top gear at 1000 rpm · 30 km/h · 29 km/h · 28 km/h
Remarks

1)
Only use gear oil to Ford specification M 2 C 104 A in gearboxes with a limited slip differential.

2)
From Assy. date 29 04 6, final drive ratio is: 38:7 = 5.43.

Code letters · ACW · ABE · ALD
Manufactured · from: / to: · 02.85 · 07.85 · 09.86
Allocation · Model · Carat · Transporter Caravelle
Engine · 2.1 ltr. 82 kW 70 kW · 1.9 ltr. 57 kW · 1.7 ltr. 42 kW Diesel
Ratios · Final drive · 29 : 6 = 4.83 · 33 : 6 = 5.50
Z2: Z1= i · 1st gear · 34 : 9 = 3.78
2nd gear · 33 : 16 = 2.06
3rd gear · 49 : 40 = 1.23
4th gear · 41 : 48 = 0.85
5th gear
Reverse · 33 : 9 = 3.67
Oil capacitylitres) · 3.0 · 4.0
Specification1) · Gear oil GL 4 (MIL-L 2105) SAE 80
Clutch control · Hydraulic
Clutch plate dia. · 228 mm · 215 mm
Drive flange dia. · 100 m
Tyres: Dynamic roll circumference · 1.97 m
Overall ratio in top gear · 4.12 · 4.69
Speed in top gear at 1000 rpm · 29 km/h · 25.3 km/h
Remarks: · M 220
Differential with 4 small bevel pinions

M 220: Limited slip differential

1)
Only use gear oil to Ford specification M 2 C 104 A in gearboxes with a limited slip differential.

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Workshop data on this page last updated 20 Sep 2026.