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Mercedes-Benz Vario Roof R171, Troubleshooting Tree

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Mercedes-Benz Vario Roof R171 Troubleshooting Tree Download Page 28

 V

ario 

R

oof R171

 

T

roubleshooting

 

T

ree

 

 

 
Status July 18, 2006 

 

Page 

28/30

 

4

 

 EE/hydraulic function 

4.1

 

Malfunctions on actuation of the Vario roof 

4.1.1

 

Roof cannot be opened

 

 

 

Complaint: 

Vario roof cannot be opened or closed. 

 

Cause:   

Passenger side or driver side side window does not open. 

 

Measure:  

Parameterize the door control unit with DAS, 
see also  GI77.39-P-011821. 
 

Note:

 

Valid only for the DCU with SW release 20/03 

and 

diagnosis identifier 0000

 

 

 
SSL: 

72220EK Left front door control unit 
72230EK Right front door control unit 

 

Important: 

The door control unit is not to be replaced for this fault profile. 

 

– This printout will not be recorded by the update service. Status: 10 / 2006 –

Summary of Contents for Vario Roof R171

Page 1: ... cost settlements for repair orders ensure that the specified damage codes and the relevant vehicle identification numbers are complied with to avoid unnecessary warranty and goodwill costs In case of a complaint all repair work is to be carried out only on the basis of the released workshop literature and with the approved repair materials e g noise reduction service kit part no A 000 580 03 50 T...

Page 2: ...Vario Roof R171 Troubleshooting Tree Status July 18 2006 Page 2 30 R171 Overview of pivots on kinematics This printout will not be recorded by the update service Status 10 2006 ...

Page 3: ...Vario Roof R171 Troubleshooting Tree Status July 18 2006 Page 3 30 R171 Overview of pivots on kinematics This printout will not be recorded by the update service Status 10 2006 ...

Page 4: ...____ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ ______________________________________...

Page 5: ...e trunk lid area 16 1 3 Wind noises 17 1 3 1 Wind noises in the front Vario roof joint area to the rear window 17 1 3 2 Side window area 18 1 3 2 1 Wind noises in the side window rear side window area 18 1 3 2 2 Wind noises in the side rear window lower C pillar area 19 1 4 Noises in the body shell 20 1 4 1 Cracking noises from the Vario roof trunk C pillar area 20 2 FITS 21 2 1 Seals buckling 21 ...

Page 6: ...2006 Page 6 30 4 EE HYDRAULIC FUNCTION 28 4 1 Malfunctions on actuation of the Vario roof 28 4 1 1 Roof cannot be opened 28 4 2 Noises in the hydraulic pump 29 4 2 1 Intake noises 29 This printout will not be recorded by the update service Status 10 2006 ...

Page 7: ...is imperative to attend to the seals first Ripping and creaking noises in driving can also be transmitted to the Vario roof through the vehicle shell or loose threaded connections of assembly parts e g C pillar In case of complaint all repair works are to be carried out only on the basis of the released workshop literature and with the approved repair materials e g noise reduction service kit part...

Page 8: ... noises while driving Measure Treat the seals on the Vario roof and the bar seal on the upper rear side window pos 1 with a special antifriction agent part no A 001 989 50 51 or A 000 989 36 60 see AF77 30 P 1501AG Note Observe the soaking time of the special antifriction agent SSL 7921736 Upper rear window seal noises 7205136 Windshield frame seal noises 7922036 Lower rear window frame seal noise...

Page 9: ...n rough roads Cause Funnel opening of the support pos 1 can be too large for the locking pin pos 2 As a result noises may occur in the front Vario roof area when driving on rough roads Measure See GI77 33 P 035782 SSL 7920636 Front Vario roof locking pin support noises Important Do not replace the complete front Vario roof lock Important Vehicles are OK from VIN 048760 This printout will not be re...

Page 10: ...t pivot point 1 stuck together Measure Remove safety clip and washer pos 1 2 Clean the contact surfaces of the safety clip washers and roof frame and afterwards grease with low friction paste part no A 001 989 46 51 Press the handle pos 4 a bit to the inside and grease the pin pos 3 on pivot 1 with low friction paste see GI77 33 P 036569 SSL 7920336 Vario roof frame noises This printout will not b...

Page 11: ... loose Remove eccentric pos 1 drill bore pos 2 in the handle 6 2 mm apply corrosion protection briefcase black in the bore see GI77 33 P 032755 Remove paint from the contact surface pos 3 of the eccentric Install and adjust eccentric again see AR77 33 P 3475V ensure correct position of the gate valve pos 4 in the locked Vario roof 2 For fixed eccentric with rattling noises adjust gate valve see AR...

Page 12: ...ble joint 2 area Complaint Fine ripping noises in the Bowden cable joint 2 area Measure Replace omega clips pos 1 with short foot part no A 000 995 54 44 SSL 7921536 Roof frame latch cable noises Important Vehicles are OK from VIN 007366 This printout will not be recorded by the update service Status 10 2006 ...

Page 13: ...ciently greased Measure Check the position of the rear window if necessary adjust see AR67 20 P 3002V Grease rear window stops with pos 1 and 6 with low friction paste part no A 001 989 46 51 Note When doing adjustment operations bear in mind the fit of the rear window to the Vario roof SSL 7921036 Rear window adjustment buffer noises 7923336 Lower rear window XY guide noises This printout will no...

Page 14: ...sher on the pivot Clean the bushing remove the residues of thread lock and cataphoretic immersion primer and turn in and tighten the screw with thread locking agent part no A 003 989 31 71 tightening torque 20 Nm 2 Remove screw completely at DA17 Note When removing the screw pay attention to the washer on the pivot Clean the bushing remove the residues of thread lock and cataphoretic immersion pri...

Page 15: ...while driving Cause Insufficient pre tension of the rear shelf to the rear window frame Measure Install damping material part no A 171 694 00 92 with fleece tape pos 1 Fasten damping material to the rear window frame with superglue Parts were modified while retaining the previous part no SSL 6901536 Rear shelf noises Important Vehicles are OK from VIN 073287 This printout will not be recorded by t...

Page 16: ...ure 1 Adjust stops pos 1 in such a way that they rest against the fixings pos 2 when the trunk lid is closed then push 1 mm to the outside pre tension and tighten see AR88 50 P 5200V 2 Grease trunk lid guide pos 1 with low friction paste part no A 001 989 46 51 Note Apply a thin coat of low friction paste Always observe 1 mm pre tension SSL 7500136 Trunk lid noises assigned damage code This printo...

Page 17: ...n protection briefcase black in the bore see GI77 33 P 032755 Remove paint on the contact surface pos 3 of the eccentric Install and adjust eccentric again see AR77 33 P 3475V ensure correct position of the gate valve pos 4 in the locked Vario roof 2 For fixed eccentric with rattling noises adjust gate valve see AR77 33 P 3475V ensure the correct position of the gate valve pos 4 in the locked Vari...

Page 18: ...ar between the side window and rear side window Adjustment of the rear side window is not OK Measure 1 Treat the exterior C pillar bottom seal with special antifriction agent part no A 001 989 50 51 or A 000 989 36 60 see AF77 30 P 1501AG Observe the soaking time of the special antifriction agent 2 Adjust rear side window see GI72 10 P 020305 Release 3 0 SSL 6712442 Poor rear side window fit This ...

Page 19: ...r seal lower Note Loosen only the lower screws pos 2 of the retaining rail pos 3 and pull the seal pos 1 lower The seal can be pulled lower up to 1 5 mm Do not pull it out of the retaining rail as there is a seal mass below the retaining rail and this could cause leakages see AR77 50 P 6766V SSL 7705539 Joint 6 gap wind noises on left exterior C pillar 7705639 Joint 6 gap wind noises on right exte...

Page 20: ...ons and re tighten them Tightening torque for the screws pos 1 10 Nm Tightening torque for the nuts pos 2 6 Nm Tightening torque for the screws pos 3 6 Nm see GI68 64 P 038163 Recommendation When handling the tank cover the plastic spacer pos 4 should also be removed see measure 2 Important For complaint 1 Vehicles are OK from VIN 119481 Note If the tank cover does not rest on the longitudinal mem...

Page 21: ...amps pos 5 with opening for water drain in the windshield frame seal pos 4 and a clamp pos 3 in the Vario roof front part seal pos 2 see GI77 30 P 012632 Measure 2 Adjust side window see GI72 10 P 020305 Release 3 0 SSL 72051C6 Windshield frame seal bent 79216C6 Vario roof side seal bent 72D0151 Right front door window poorly adjusted 72S0151 Left front door window poorly adjusted This printout wi...

Page 22: ...opening the vehicle dry thoroughly with suitable cloths without compressed air 7 Open the trunk lid slowly approx 10 cm wide inspect the seal course with a light probe and check for water entry 8 Open the trunk lid fully and wipe the interior of the lid edge to prevent afterdripping 9 Check the cloths and localize the leakage 10 In case of leakages process the affected positions otherwise proceed ...

Page 23: ...oubleshooting Tree Status July 18 2006 Page 23 30 3 1 1 Examples of rain check sprinkling with R230 Pos 1 Gardena sprinkler Pos 2 Gardena sprinkler This printout will not be recorded by the update service Status 10 2006 ...

Page 24: ...drips on the seat Joint 2 pos 2 1 Water running down window 2 Water on the B pillar trim rear trim behind seat Cause 1 Contact pressure too high low deformation gap formation 2 Window adjustment not OK Measure 1 Adjust sealing see AR 77 50 P 4200V 2 Adjust rear window see GI72 10 P 020305 Release 3 0 SSL 7921604 Vario roof seal side seal leaky This printout will not be recorded by the update servi...

Page 25: ...trunk Complaint Water near the luggage compartment partition Cause 1 Sealing profile sealing pad at the lower rear window seal is loose or not positioned correctly Measure Glue new sealing pad onto joint 5 see GI77 30 P 018434 SSL 7922004 Lower rear window frame seal leaky Join This printout will not be recorded by the update service Status 10 2006 ...

Page 26: ...of Complaint Water drips into the trunk on opening the Vario roof pos 1 Cause Seal plug missing in the upper C pillar seal pos 4 and 5 Measure Glue sealing plug into the upper C pillar seal see GI77 30 P 012544 SSL 7922504 Interior C pillar seal leaky This printout will not be recorded by the update service Status 10 2006 ...

Page 27: ...t in the footwell 3 Water drain hose in the battery box clogged no passage Measure 1 Check the cover of the fuse box and if necessary close it 2 Check if the water drain hoses are fitted properly and if required plug correctly 3 Check water drain hose and if necessary clean the hose SSL For 1 5454738 Module box control unit box cover loose For 2 8349304 Condensation water air conditioning drain ho...

Page 28: ... side or driver side side window does not open Measure Parameterize the door control unit with DAS see also GI77 39 P 011821 Note Valid only for the DCU with SW release 20 03 and diagnosis identifier 0000 SSL 72220EK Left front door control unit 72230EK Right front door control unit Important The door control unit is not to be replaced for this fault profile This printout will not be recorded by t...

Page 29: ... intake of air can take place in the drive cylinders master cylinders On subsequent actuation of the roof an increased noise development intake noise can be heard from the hydraulic unit for a short time Measure After a maximum of three actuations of the roof the described noise can no longer be heard see GI77 30 P 020502 SSL 7732152 Hydraulic pump does not function properly Important This increas...

Page 30: ...ng in the generation of the troubleshooting tree Bremen plant Departments BSL MOR1 BSL MOR2 QM QPR AS QM QPE Development department passenger cars Departments EP GKE Service Product Engineering Departments GSP TPS GSP TPT This printout will not be recorded by the update service Status 10 2006 ...

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