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Home >> Mercedes Benz >> 2020 >> CLA45 AMG >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Crank Assembly -- 118 Chassis >> Testing & Repair >> Check Crankshaft In Removed State - AR03.20-P-4463-01MR

Check Crankshaft In Removed State - AR03.20-P-4463-01MR

Engine 133, 139, 260, 270, 274, 282 

Topical note  Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
CHECK VALUES FOR CRANKCASE

Number Designation Engine 133 Engine 270
BE01.40-P-1001-04A Crankshaft bearing Basic bore diameter mm 59, 000...59, 019 59, 000...59, 019
Basic bore width at fit bearing mm 19, 967...20, 00 19, 967...20, 00
Permissible out-of-roundness and taper of basic bore mm 0, 03 0, 03
CHECK VALUES FOR CRANKCASE

Number Designation Engine 274
BE01.40-P-1001-04A Crankshaft bearing Basic bore diameter mm 59, 000...59, 019
Basic bore width at fit bearing mm 19, 967...20, 00
Permissible out of roundness and taper of basic bore mm 0, 03
CHECK VALUES FOR CRANKCASE

Number Designation Engine 139 Engine 260
BE01.40-P-1001-04D Crankshaft bearing Basic bore diameter mm 59, 000...59, 019 59, 000...59, 019
Number 1 (blue) mm 59, 000...59, 006 59, 000...59, 006
Number 2 (yellow) mm 59, 006...59, 013 59, 006...59, 013
Number 3 (red) mm 59, 013...59, 019 59, 013...59, 019
CHECK VALUES FOR CRANKCASE

Number Designation Engine 282
BE01.40-P-1001-04E Crankshaft bearing Basic bore diameter   mm 46, 029...46, 049
Embossed mark A mm 46, 029...< 46, 030
B mm 46, 030...< 46, 031
C mm 46, 031...< 46, 032
D mm 46, 032...< 46, 033
E mm 46, 033...< 46, 034
F mm 46, 034...< 46, 035
G mm 46, 035...< 46, 036
H mm 46, 036...< 46, 037
J mm 46, 037...< 46, 038
K mm 46, 038...< 46, 039
L mm 46, 039...< 46, 040
M mm 46, 040...< 46, 041
N mm 46, 041...< 46, 042
P mm 46, 042...< 46, 043
R mm 46, 043...< 46, 044
S mm 46, 044...< 46, 045
T mm 46, 045...< 46, 046
U mm 46, 046...< 46, 047
V mm 46, 047...< 46, 048
W mm 46, 048...46, 049
CHECK VALUES FOR CRANKSHAFT

Number Designation Engine 133 Engine 270.910
BE03.20-P-1001-02K Sliding bearing pins (GZ) diameter Nominal Ø   mm 54, 940...54, 965 54, 940...54, 965
Repair stage 1 blue (BU) GZ1 - GZ5 mm 54, 960...54, 965 54, 960...54, 965
Repair stage 2 yellow (YE) GZ1 - GZ5 mm 54, 955...54, 960 54, 955...54, 960
Repair stage 3 red (RD) GZ1 - GZ5 mm 54, 950...54, 955 54, 950...54, 955
Repair stage 4 white (WH) GZ1 - GZ5 mm 54, 945...54, 950 54, 945...54, 950
Repair stage 5 violet (VT) GZ1 - GZ5 mm 54, 940...54, 945 54, 940...54, 945
CHECK VALUES FOR CRANKSHAFT

Number Designation Engine 270.920 Engine 274
BE03.20-P-1001-02K Sliding bearing pins (GZ) diameter Nominal Ø   mm 54, 940...54, 965 54, 940...54, 965
Repair stage 1 blue (BU) GZ1 - GZ5 mm 54, 960...54, 965 54, 960...54, 965
Repair stage 2 yellow (YE) GZ1 - GZ5 mm 54, 955...54, 960 54, 955...54, 960
Repair stage 3 red (RD) GZ1 - GZ5 mm 54, 950...54, 955 54, 950...54, 955
Repair stage 4 white (WH) GZ1 - GZ5 mm 54, 945...54, 950 54, 945...54, 950
Repair stage 5 violet (VT) GZ1 - GZ5 mm 54, 940...54, 945 54, 940...54, 945
CHECK VALUES OF CRANKSHAFT

Number Designation Engine 260
BE03.20-P-1001-02M Crankshaft journal Ø Nominal Ø   mm 54, 940...54, 965
Repair stage 1 Blue (B) mm 54, 960...54, 965
Repair stage 2 Yellow (G) mm 54, 955...54, 960
Repair stage 3 Red (R) mm 54, 950...54, 955
Repair stage 4 White (W) mm 54, 945...54, 950
Repair stage 5 Violet (V) mm 54, 940...54, 945
CHECK VALUES OF CRANKSHAFT

Number Designation Engine 282
BE03.20-P-1001-02N Main bearing journal Ø Nominal Ø   mm 41, 990...42, 010
Embossed mark A mm 42, 010...42, 009
B mm < 42, 009...42, 008
C mm < 42, 008...42, 007
D mm < 42, 007...42, 006
E mm < 42, 006...42, 005
F mm < 42, 005...42, 004
G mm < 42, 004...42, 003
H mm < 42, 003...42, 002
J mm < 42, 002...42, 001
K mm < 42, 001...42, 000
L mm < 42, 000...41, 999
M mm < 41, 999...41, 998
N mm < 41, 998...41, 997
P mm < 41, 997...41, 996
R mm < 41, 996...41, 995
S mm < 41, 995...41, 994
T mm < 41, 994...41, 993
U mm < 41, 993...41, 992
V mm < 41, 992...41, 991
W mm < 41, 991...41, 990
CHECK VALUES OF CRANKSHAFT

Number Designation Engine 139
BE03.20-P-1001-02O Crankshaft journal Ø Nominal Ø   mm 54, 940...54, 965
Repair stage 1 Blue (B) mm 54, 960...54, 965
Repair stage 2 Yellow (G) mm 54, 955...54, 960
Repair stage 3 Red (R) mm 54, 950...54, 955
Repair stage 4 White (W) mm 54, 945...54, 950
Repair stage 5 Violet (V) mm 54, 940...54, 945
CRANKSHAFT BEARING CAP

Number Designation Engine 133 Engine 139
BA03.20-P-1001-01B Bolt for crankshaft bearing cap Stage 1 Nm 38 40
Stage 2 ∠° 90 90
CRANKSHAFT BEARING CAP

Number Designation Engine 260 Engine 270
BA03.20-P-1001-01B Bolt for crankshaft bearing cap Stage 1 Nm 36 36
Stage 2 ∠° 120 120
CRANKSHAFT BEARING CAP

Number Designation Engine 274
BA03.20-P-1001-01B Bolt for crankshaft bearing cap Stage 1 Nm 36
Stage 2 ∠° 120
CRANKSHAFT

Number Designation Engine 282
BA03.20-P-1001-01P Bolt, crankshaft bearing cap to crankcase M14 Stage 1 Nm 32
Stage 2 ∠° 63
Fig 1: Identifying Dial Gauge (001 589 53 21 00)
G12816444Courtesy of MERCEDES-BENZ USA
  1. Check all bearing points of the crankshaft (6) for traces of wear, cross scores, notches, blue coloration and damage.

    If traces for wear, cross scores, notches, blue coloration, and damage can be detected,

    ↓

    Install new crankshaft (6).

  2. Check contact surfaces of the crankshafts bearing shells (5) and thrust surfaces of the thrust plates (8) on the crankcase for traces of wear and damage.

    If traces of wear and damage can be detected,

    ↓

    Replace crankshaft and crankcase (6).

  3. Check contact surfaces of the crankshaft bearing shells (4) on the crankshaft bearing cap (1) for traces of wear and damage.

    If traces of wear and damage can be detected,

    ↓

    Replace crankshaft and crankcase (6).

    G12078964Courtesy of MERCEDES-BENZ USA
  4. Check contact surfaces of the crankshafts bearing shells (4) and thrust surfaces of the thrust plates (7) on the fitted bearing cap (2) for traces of wear and damage.

    IMPORTANT Engine 282

    Thrust plates (7) are not available.

    If traces of wear and damage can be detected,

    ↓

    Replace crankshaft and crankcase (6).

  5. Measure basic bore width on fitted bearing cap (2). Engine 133, 270, 274

    Engine 139

    Engine 260

    Engine 282

    If measured value lies outside of tolerance,

    ↓

    Replace crankshaft and crankcase (6).

  6. Measure the diameter on the crankshaft pins. Engine 139

    Engine 282

    Engine 260

    Engine 133, 270.910/920, 274

    If the measured value lies outside the tolerance range shown in the crankshaft check values table,

    ↓

    Install new crankshaft (6).

    G12078951Courtesy of MERCEDES-BENZ USA
  7. Install crankshaft bearing caps (1) without crankshaft bearing shells (4, 5) Engine 282

    TORQUE SPECIFICATION Engine 133, 260, 270, 274

    Engine 139

    TORQUE SPECIFICATION .

  8. Install fitted bearing cap (2) without crankshaft bearing shells (4, 5) and without thrust plates (7) Engine 282

    TORQUE SPECIFICATION Engine 133, 260, 270, 274

    Engine 139

    TORQUE SPECIFICATION .

    IMPORTANT Engine 282

    Thrust plates (7) are not available.

    G12078966Courtesy of MERCEDES-BENZ USA
    G12078950Courtesy of MERCEDES-BENZ USA
  9. Measure basic bore diameters with a SPECIAL TOOL dial indicator and rapid measuring gauge for inner measurements in direction A, B, and C in two planes (roundness) Engine 133, 270, 274

    Engine 139

    Engine 260

    Engine 282

    .

    If the measured values lie outside of the tolerance,

    ↓

    Replace crankshaft and crankcase (6).

  10. Remove crankshaft bearing caps (1) and fitted bearing caps (2).
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