v c: .... · l·.\:d. •• T .O ,..., .. i\ t;:. Pi J f'\

Topic number

Version

Design group

Date

Ground points with paint-stripping nut

Ll54.18-P-058937

1

54.18 Cable harnesses

04-21-2014

Validity Model series 176, 246, 156, 117, 166 ,172, 231 , 222, 217,205

Reason for change

Reason for block

Complaint: Various electrical fault profiles and fault messages in the instrument cluster. Supposedly poor ground points in the vehicle Overpainted M6 ground bolts Paint residues on the ground bolts See attachments for examples

Attachments

File Designation

Vermeintlich schlechte Massestelle Nr1 .jpg Supposedly poor ground point during repair; expert opini-on ground point OK

Vermeintlich schlechte Massestelle Nr2.JPG Supposedly poor ground point during repair; expert opini-on ground point OK

Vermeintlich schlechte Massestelle Nr3.JPG Supposedly poor ground point during repair; expert opini-on ground point OK

Vermeintlich schlechte Massestelle Nr4.JPG Supposedly poor ground point during repair; expert opini-on ground point OK

Cause: The contact design of the electrical ground connections to the vehicle body has been changed. All M6 ground bolts on the body are overpainted during production. Newly developed paint-stripping nuts are now used.

Remedy: The technology of the paint-stripping nut means that the paint on the ground bolt is scraped off as the nut is tightened, establishing an electrical connection between the male thread of the ground bolt and the inside thread of the nut. The contact points of the electrical ground connection are the underside of the thread on the ground bolt and the threads of the nut. It does not matter that the contact surface and the protruding thread of the ground bolt are overpainted because the electrical ground connection is made via the thread of the ground bolt. Photos for orientation are attached. These ground points are assessed as not OK during repair work. However, our experts are of the opinion that these ground points are OK (see above for reasoning). In the event of electrical problems in the vehicle, DO NOT open and clean the ground points. Contact surface of ground bolt: The contact surface of the ground bolt for the cable lug is overpainted. This is OK!!!

04-21-2014 1:18 PM © Copyright Daimler AG

PLUBONS Page 1/13

It is sufficient merely to ensure that the contact surface of the cable lug is flat (no dirt inclusions or welding spatter). DO NOT clean the paint off the contact surface, as this could lead to other problems (corrosion). Reuse of paint-stripping nuts: Before screwing the paint-stripping nut back onto the ground connection, the paint residues in the grooves of the paint-stripping nut must be removed (e.g. blow out with compressed air). Replacement of nuts on ground points: In repair cases, make sure that only the new paint-stripping nuts are used. Paintwork rectification on the vehicle: To avoid excessively thick paint coats, the connection must be masked (e.g. with a nut screwed on or with a cap) be­fore retouching the paintwork in the area of the ground connection. For further information on the subject of ground points and paint-stripping nuts, see AH00.19-P-1000-20A. For various electrical fault profiles, please refer to the relevant TIPS documents for these fault profiles and DO NOT merely check and clean the ground points.

Attachments

File Designation

Massestelle uberlackiert Nr1 iO.jpg Contact surface and ground bolt overpainted; electrical conductivity OK

Massestelle uberlackiert Nr2 iO.jpg Contact surface and ground bolt overpainted; electrical conductivity OK

Symptoms

Power transmission I Automatic transmission I Automatic transmission - function I Shifts

Power transmission I Automatic transmission I Automatic transmission - function I Electrical faulUFault code

Power generation I Engine management I Engine management indicator lamp I Engine diagnosis / lit

Overall vehicle I Power supply I Battery/On-board electrical system I Battery/on-board electrical system display mes-sage I Battery/Alternator - Serviced Required

Overall vehicle I Power supply I Battery/On-board electrical system I Battery/on-board electrical system display mes-sage I Low voltage Charge battery

Overall vehicle I Networking I CAN/FlexRay communication I Malfunction

Overall vehicle I Networking I Gateway communication I Malfunction

Chassis/suspension I Brake system I Brakes/traction regulation system I Electronic Stability Program ESP/ Indicator lamp/ lit

Chassis/suspension I Brake system I Brakes/traction regulation system I Brake assist system BAS I Display messa-ge I Brake assist - not available

Chassis/suspension I Brake system I Brakes/traction regulation system I Brake assist system BAS / Indicator lamp I lit

Chassis/suspension I Brake system I Brakes/traction regulation system I Starting-off aid I Nonfunctional

Chassis/suspension I Brake system I Brakes/traction regulation system I Brake assist system BAS / Indicator lamp I Goes on

Chassis/suspension I Brake system I Brakes/traction regulation system I Electronic Stability Program ESP / Indicator lamp I Goes on

Chassis/suspension I Brake system I Brakes/traction regulation system I Electronic Stability Program ESP I Display message I Display text, yellow/white I Unavailable - ESP - See Operator's Man.

Power generation I Engine management I Engine performance I Goes into limp-home mode

Power generation I Engine management I Engine performance I No/poor output

Power transmission I Automatic transmission I Automatic transmission - function I Poor shift quality

Overall vehicle I Power supply I Battery/On-board electrical system I Battery/on-board electrical system display mes-sage I Backup battery fault

04-21-2014 1 :18 PM ©Copyright Daimler AG

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Communication/information I Warning and control system I COLLISION PREVENTION ASSIST I Warning system nonfunctional

Parts

Part number ES1

A 004 990 62 50

WIS-References

Document number

AH00.19-P-1000-20A

Validity

Vehicle

156.902

156.903

156.905

156.908

156.943

156.944

156.946

166.003

166.004

166.023

166.024

166.055

166.056

166.057

166.058

166.062

166.073

166.074

166.823

166.824

166.856

166.872

166.873

04-21-2014 1:18 PM ©Copyright Daimler AG

ES2 Designation Quantity

Paint-stripping nut

Title Note

Notes on using paint-strip-ping nut for ground connec-tions

Engine

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

PLUBONS

Note EPC Other ma-ke part

Paint-stripping nut for ground x points

Allocation

Remedy

Transmission

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

Page 3/13

\I £'.'.. 11.J - n '" t\o 4 !\ii ~· Y\ l

166.874

176.000

176.001

176.002

176.003

176.005

176.007

176.008

176.011

176.012

176.042

176.043

176.044

176.046

176.052

222.004

222.032

222.033

222.057

222.077

222.082

222.085

222.104

222.123

222.132

222.133

222.157

222.162

222.165

222.176

222.177

222.178

222.179

222.182

222.185

242.848

246.200

246.201

246.203

246.207

246.211

246.212

246.242

04-21-2014 1:18 PM © Copyright Daimler AG

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

* *

PLUBONS Page 4/13

·~. , e::. •. •N .. · .. ·· "''"" R· . ·. v l"\~ ··· l · .. · ·j

246.243 * *

246.244 * *

246.247 * *

c (205) * *

CLA (117) * *

s (217) * *

SL (231) * *

SLK (172) * *

Full model designation breakdown

Vehicle Engine Transmission

117.301 651 .901 711.642

117.301 651 .901 724.003

117.302 651.930 724.011

117.303 651.930 724.003

117.305 651 .930 724.011

117.308 651 .930 711 .645

117.308 651.930 724.003

117.312 607.951 711.632

117.312 607.951 724.020

117.342 270.910 711.632

117.342 270.910 711 .643

117.342 270.910 724.002

117.343 270.910 711.643

117.343 270.910 724.002

117.344 270.920 724.003

117.345 270.920 724.003

117.346 270.920 724.011

117.347 270.920 724.011

117.352 133.980 724.015

156.902 651 .930 724.011

156.903 651.930 724.004

156.905 651 .930 724.011

156.908 651.930 711 .632

156.908 651 .930 724.004

156.943 270.910 711.647

156.943 270.910 724.001

156.944 270.920 724.004

156.946 270.920 724.011

166.003 651.960 722.908

166.004 651.960 722.908

166.023 642.826 722.903

04-21-2014 1:18 PM PLUBONS © Copyright Daimler AG Page 5/13

166.023 642.826 725.031

166.024 642.826 722.903

166.024 642.826 725.031

166.055 276.955 722.906

166.056 276.821 722.904

166.057 276.955 722.906

166.058 276.955 722.906

166.062 276.821 722.904

166.073 278.928 722.909

166.073 278.928 725.031

166.073 278.928 725.032

166.074 157.982 722.905

166.074 157.982 722.931

166.823 642.826 722.903

166.823 642.826 725.031

166.824 642.826 722.903

166.824 642.826 725.031

166.856 276.821 722.904

166.872 278.928 722.909

166.872 278.928 725.031

166.872 278.928 725.032

166.872 278.928 725.033

166.873 278.928 722.909

166.873 278.928 725.031

166.873 278.928 725.032

166.873 278.928 725.033

166.874 157.982 722.905

166.874 157.982 722.931

172.403 651 .980 711 .670

172.403 651 .980 722.908

172.447 271.861 711 .653

172.447 271.861 711 .654

172.447 271.861 722.997

172.448 271.861 711.655

172.448 271.861 722.997

172.457 276.956 722.906

172.475 152.980 722.909

176.000 651.901 711 .642

176.000 651.901 724.003

176.001 651 .901 711.642

176.001 651.901 724.003

176.002 651 .930 724.011

176.003 651.930 724.003

04-21-2014 1:18 PM PLUBONS © Copyright Daimler AG Page 6/13

176.005

176.007

176.007

176.008

176.008

176.011

176.011

176.011

176.012

176.012

176.012

176.042

176.042

176.042

176.043

176.043

176.044

176.046

176.052

205.002

205.002

205.002

205.003

205.003

205.003

205.004

205.004

205.004

205.008

205.008

205.008

205.009

205.009

205.012

205.012

205.012

205.036

205.036

205 .037

205.037

205.040

205.040

205.040

04-21-2014 1:18 PM ©Copyright Daimler AG

651 .930

651.930

651 .930

651.930

651 .930

607.951

607.951

607.951

607.951

607.951

607.951

270.910

270.910

270.910

270.910

270.910

270.920

270.920

133.980

651.921

651.921

651.921

651 .921

651.921

651 .921

651.921

651.921

651.921

651.921

651.921

651 .921

651 .921

651 .921

651 .921

651.921

651.921

626.951

626.951

626.951

626.951

274.910

274.910

274.910

PLUBONS

724.011

711.645

724.003

711 .645

724.003

711.632

711 .645

724.020

711.632

711 .645

724.020

711.632

711.643

724.002

711.643

724.002

724.003

724.011

724.015

716.754

722.908

725.011

716.754

722.908

725.011

716.754

722.908

725.011

716.754

722.908

725.011

716.754

722.965

716.754

724.208

725.011

716.700

722.993

716.700

722.993

716.702

722.995

725.011

Page 7/13

'" c NT R ·v I'\ ~ . ·.. . . f

205.041

205.041

205.041

205.042

205.042

205.042

205.045

205.045

205.045

205.049

205.049

205.066

205.066

205.142

205.142

205.145

205.145

205.204

205.204

205.204

205.208

205.208

205.208

205.212

205.212

205.212

205.240

205.240

205.240

205.242

205.242

205.242

205.245

205.245

205.245

217.382

222.004

222.032

222 .032

222.033

222 .057

222.057

222.077

04-21-2014 1 :18 PM © Copyright Daimler AG

274.910

274.910

274.910

274.920

274.920

274.920

274.920

274.920

274.920

274.920

274.920

276.823

276.823

274.920

274.920

274.920

274.920

651 .921

651 .921

651.921

651 .921

651 .921

651.921

651.921

651 .921

651 .921

274.910

274.910

274.910

274.920

274.920

274.920

274.920

274.920

274.920

278.929

651.921

642.861

642.861

642.867

276.960

276.960

157.985

PLUBONS

716.702

722.995

725.011

716.702

722.995

725.011

716.702

722.995

725.011

716.702

722.969

722.961

725.041

722.995

725.011

722.995

725.011

716.750

722.908

725.011

716.750

722.908

725.011

716.750

724.208

725.011

716.702

722.995

725.011

716.702

722.995

725.011

716.702

722.995

725.011

722.909

724.208

722.903

725.011

722.966

724.206

725.011

722.931

Page 8/13

222.082

222.082

222.085

222.085

222.104

222.123

222.123

222.132

222.132

222.133

222.157

222.157

222.162

222.162

222.165

222.165

222.176

222.177

222.178

222.179

222.182

222.182

222.185

222.185

231.457

231.465

231.473

231.474

231.479

242.848

242.848

246.200

246.200

246.201

246.201

246.203

246.207

246.207

246.211

246.211

246.212

246.212

246.212

04-21 -2014 1:18 PM © Copyright Daimler AG

278.929

278.929

278.929

278.929

651.921

642.861

642.861

642.861

642.861

642.867

276.960

276.960

276.824

276.824

276.824

276.824

277.980

157.985

157.985

279.980

278.929

278.929

278.929

278.929

276.954

276.825

278.927

157.983

279.981

270.920

270.920

651.901

651.901

651 .901

651 .901

651.930

651.930

651.930

607.951

607.951

607.951

607.951

607.951

PLUBONS

722.909

725.011

722.967

725.041

724.208

722.903

725.011

722.903

725.011

722.966

724.206

725.011

722.904

725.011

722.904

725.011

722.932

722.931

722.971

722.932

722.909

725.011

722.967

725.041

722.906

722.904

722.909

722.931

722.932

711.632

724.003

711.642

724.003

711.642

724.003

724.003

711.645

724.003

711 .632

724.020

711.632

711.645

724.020

Page 9/13

){ENTRY

246.242

246.242

246.242

246.243

246.243

246.243

246.244

246.247

Attachments Vermeintlich schlechte Massestelle Nr1 .jpg:

04-21-2014 1 :18 PM © Copyright Daimler AG

270.910 711.632

270.910 711.643

270.910 724.002

270.910 711.643

270.910 724.002

270.910 724.003

270.920 724.003

270.920 724.011

PLUBONS Page 10/13

,. ,~ e .N. - ,D ·",,,. i\m>'• . . ··" f"\ {

Vermeintlich schlechte Massestelle Nr2.JPG:

Vermeintlich schlechte Massestelle Nr3.JPG:

04-21-2014 1 :18 PM ©Copyright Daimler AG

PLUBONS Page 11/13

>tENTRY

Vermeintlich schlechte Massestelle Nr4.JPG:

Massestelle Oberlackiert Nr1 iO.jpg:

04-21-2014 1 :18 PM ©Copyright Daimler AG

PLUBONS Page 12/13

t

Massestelle Oberlackiert Nr2 iO.jpg:

04-21-2014 1:18 PM © Copyright Daimler AG

PLUBONS Page 13/13