LI77.30-P-056644
Service Bulletin Details
Public Details for: LI77.30-P-056644
Water entry through front section of retractable hardtop with the following localization: - partial water entry in the area of the side seals to the a-pillar (for area see fig. 1) when accelerating/braking the vehicle.
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Water ingress - retractable hardtop front section Topic number LI77.30-P-056644 Version 1 Design group 77.30 Vario roof, soft top - complete Date 07-25-2013 Validity SLK - BR172 Reason for change Damage code for retractable hardtop front section adjusted. New damage code is 79201 04 for Vario roof front section - Leaking. Published worldwide. Reason for block Complaint: Water entry through front section of retractable hardtop with the following localization: - Partial water entry in the area of the side seals to the A-pillar (for area see Fig. 1) when accelerating/braking the vehicle. - Water entry in rear area of side seals (see Fig. 2 and Fig. 3). - Water entry in area of rear pivot/mounting for front section of retractable hardtop (see Fig. 4 and Fig. 5) - Water entry in side area of headliner (see Fig. 6). Attachments File Designation Abb.1.jpg Fig. 1 Abb.2.jpg Fig. 2 Abb.3.jpg Fig. 3 Abb.4.jpg Fig. 4 Abb.5.jpg Fig. 5 Abb.6.jpg Fig. 6 Cause: - Incomplete seam seal on front section of retractable hardtop or - damaged side seal. Remedy: To successfully rectify any water entry as described above and to ensure that follow-up repairs are not required, the following procedure should be observed. 1.) Disassembling the headliner: In order to accurately localize any water entry through the front section of the retractable hardtop, the headliner has to be dismantled before the subsequent rain test. Water traces may only capable of being localized once the headliner has been dismantled. These possible water entry points should be observed closely during the subsequent rain test. 2.) Conduct standard rain test (20 minutes): Before conducting any repairs or measures to prevent water entry, a standard rain test should be performed beforehand (e.g. using a "Garden" shower head etc.). While doing so, the light sprinkling action should be over the front section of the retractable hardtop only. To enhance the troubleshooting success factor, the main intensity of the 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 1/10 sprinkler should be on the side where the complaint has been registered. During the rain test it may be worthwhile taking photos of the water entry or water entry point. 3.) Dismantling side seal: In order to localize the water entry after the rain test, the side seal on the side on which the complaint was registered must be removed. Then the seal should be checked for any damage. The polyurethane foam bead (see Fig. 7) of the side seal is not wet/moist. - Side seal damaged: In the event that the side seal is damaged, then this has to be replaced in accordance with WIS document "AR77.50-P-4200W". Special care should be paid here to the correct butyl routing. Important! After this, a rain test should be performed again to check how successful the repair has been. - Polyurethane foam bead wet/moist: In the event that the polyurethane foam bead (see Fig. 7) of the side seal is found to be wet/moist, then following operation steps should be performed to check the front section of the retractable hardtop. 4.) Check front section of retractable hardtop: - Check using endoscope (if available): The endoscope can be used to check the interior of the side panel for any water entry. Access for the endoscope here is through the previously made hole in the rear area of the magnesium frame (see Fig. 8 and Fig. 9). It is important here to check the entire panel for any water entry or drops of water. - Check by drilling holes (if endoscope not available): A drill bit with a max. diameter of 3 mm is to be used at the corresponding positions (see marked areas in Fig.10, Fig. 11 and Fig. 12) to drill water exit holes (note dimensions in Fig. 13). These water exit holes can be used to check whether waster escapes and therefore whether there is any water located in the side panel (a piece of wire can be used here to help force water out of the 3 mm water exit holes). Important!The drill bit diameter must not be larger than 3 mm and the marked areas in Fig. 10, Fig. 11 with the dimensions from Fig. 12 must be maintained, because the holes are in the dry area. If this test should reveal that there is no water in the side panel, then the water exit holes are to be sealed again using 4 mm butyl cord. No excess butyl may protrude here beyond the hole to ensure that this does not stick to the seal later on. If, in one of these cases, water entry is detected in the side panel on the front section of the retractable hardtop, then this is to be replaced in accordance with WIS document "AR77.50-P-3100W". Corresponding pictures (water exit from water exit holes, other water entry points) are to be included with the warranty claim. NOTE: Some parts may be non-stocking parts for MBUSA, and possibly C66 and not immediately available from DAG. Please be aware and check availability prior to scheduling customer repairs Attachments File Designation Abb.7.jpg Fig. 7 Abb.8.jpg Fig. 8 Abb.9.jpg Fig. 9 Abb.10.jpg Fig. 10 Abb.11.jpg Fig. 11 Abb.12.jpg Fig. 12 Symptoms Body / Roof system / Convertible top/vario roof / Vario roof / Leaks Body / Roof system / Convertible top/vario roof / Vario roof / Inaccurate gasket fit Parts Part number ES1 ES2 Designation 07-25-2013 7:47 PM © Copyright Daimler AG Quantity Note BRABENS EPC Other make part Page 2/10 A 172 790 14 40 FRONT FOLDING ROOF GLASS ROOF 1 Valid for code 415/4U8, please note EPC! FRONT FOLDING ROOF must be ordered in appropriate vehicle color. X A 172 790 10 40 FRONT FOLDING ROOF MSC ROOF 1 Valid for code 412, please note EPC! FRONT FOLDING ROOF must be ordered in appropriate vehicle color. X A 172 790 17 98 SEALING - ROOF LEFT SIDE 1 X A 172 790 18 98 SEALING - ROOF RIGHT SIDE X A 004 989 60 20 12 1 SEALING STRIP - Butyl 4 mm 1 Package contents are sufficient for several vehicles. X Work units Op. no. Operation text 77-6211 Time Damage code Note REMOVE/INSTALL VARIO ROOF FRONT SECTION 79201 04 Only refer to damage code when the water entry is through the front section of the retractable hardtop, and not through the seals. In the event of water entry, please also note this in the note/additional information. 77-6501 REPLACE SEALING AT LEFT SIDE ON FRONT SECTION OF RETRACTABLE HARDTOP 79A01 04 Only refer to damage code if seals are found to be faulty and they were the reason for the water entry. 77-6502 REPLACE SEALING AT RIGHT SIDE ON FRONT SECTION OF RETRACTABLE HARDTOP 79N01 04 Only refer to damage code if seals are found to be faulty and they were the reason for the water entry. Validity Vehicle Engine Transmission SLK (172) * * Vehicle Engine Transmission 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 Full model designation breakdown 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 3/10 172.457 276.956 722.906 172.475 152.980 722.909 Attachments Abb.1.jpg: Abb.2.jpg: 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 4/10 Abb.3.jpg: Abb.4.jpg: 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 5/10 Abb.5.jpg: 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 6/10 Abb.6.jpg: 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 7/10 Abb.7.jpg: Abb.8.jpg: 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 8/10 Abb.9.jpg: Abb.10.jpg: 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 9/10 Abb.11.jpg: Abb.12.jpg: 07-25-2013 7:47 PM © Copyright Daimler AG BRABENS Page 10/10