ra18001020008x

0008 - Checking the oil pressure sensor Engine 102 (except 102.983/99), single-belt drive

Type ra · topic 18.40 · version 9451 · 1994-12-21

Applies to:

Where it sits

Function group 1 Engine › 18 Engine lubrication, engine oil cooling › 18.40 Oil level/oil pressure sensor

Also applies to engines/gearboxes: 102 910, 102 922, 102 924, 102 962, 102 963, 102 982, 102 985

18-008 Testing oil pressure sensor

0008 - Checking the oil pressure sensor Engine 102 (except 102.983/99), single-belt drive

P18-5325-57

7

Oil filter

8

M101 - M121.5 adapter fitting

9

M121.5 threaded union (shop-made)

10

Rpm measuring instrument

X11

Diagnostic socket

003

Resistance measuring instrument (multimeter)

1

0 - 10 bar pressure gauge 103 589 00 21 01

2

T valve

3

Pressure pipe A

4

Pressure pipe B

5

M121.5 union fitting

6

Seal

B5

Oil pressure sensor

Oil level in engine

check, adjust to correct level (18-002)

Oil pressure sensor (B5)

remove, install. Replace seal (15 Nm)

Threaded insert (5) with seal (6)

screw on in place of oil pressure sensor (B5)

Pressure gauge (1) with pressure pipe (3)

connect

T valve (2) at pressure gauge (1)

close (turn until closed)

Oil pressure sensor (B5)

connect to pressure gauge (1). Use threaded union (9) (see shop-made tool)

T valve (2) at pressure gauge (1)

open (turn until open)

Oil pressure sensor (B5)

connect to multimeter (003)

Electrical resistance at the specified
engine speeds

test

Note

Conduct measurement with the pressure dropping.

If the resistance of the oil pressure sensor (B5) is not within the specified values, replace sensor.

Test data of oil pressure sensor

Engine oil pressure in bar

Resistance of oil pressure sensor in ohms

0

5-13

0.5

34-45

1.0

63-76

1.5

93-106

2.0

121-138

2.5

148-167

3.0

174-195

0008 - Checking the oil pressure sensor Engine 102 (except 102.983/99), single-belt drive

Special tool

103 589 00 21 00

Commercially available tools

M121.5 union fitting (5)

915 006 004 002 (DIN)

M101 - M121.5 adapter fitting (8)

915 007 004 001 (DIN)

Resistance measuring instrument (003)

eg. Sun DMM-5 multimeter

Rpm measuring instrument (10)

eg. engine tester or multimeter

0008 - Checking the oil pressure sensor Engine 102 (except 102.983/99), single-belt drive

Shop-made tool

M121.5 threaded union (9) for oil pressure sensor (B5) to pressure gauge (1).

P18-0052-13

0008 - Checking the oil pressure sensor Engine 102 (except 102.983/99), single-belt drive

Note

The housing of the oil pressure sensor has been modified to ensure sufficient clearance to the speedometer shaft.

Production breakpoint: 12/1984

A Previous version

B Present version

P18-0077-13

Referenced documents