𝙈𝙚𝙧𝙘𝙚𝙙𝙚𝙨 𝘼𝙘𝙩𝙧𝙤𝙨 𝘼𝙞𝙧 𝙎𝙚𝙖𝙩 𝙉𝙤𝙩 𝙒𝙤𝙧𝙠𝙞𝙣𝙜? 𝘽𝙤𝙬𝙙𝙚𝙣 𝘾𝙖𝙗𝙡𝙚 𝙎𝙥𝙚𝙘𝙨 & 𝘾𝙖𝙡𝙞𝙗𝙧𝙖𝙩𝙞𝙤𝙣

Step-by-step workshop tutorial on checking, setting, and calibrating the Bowden cables on Grammer air-sprung seats for the Mercedes-Benz Actros. If your Actros air seat fails to adjust in height, won't hold level, or the express lowering feature malfunctions, incorrect Bowden cable clearance is often the cause. In this guide, we cover the exact workshop tolerances, required air supply pressures (6.5 to 8.0 bar), and key differences between production variants (white vs. black valve levers, cam compatibility, and yellow-marked cables). In this video, you'll learn: • Regulating bench test air pressure (6.5 - 8.0 bar) • Standard variant: Setting express lowering clearance (2.5 mm) & jam nut tightening • Standard variant: Setting seat height adjustment clearance (7.8 - 8.3 mm) • Valve lever & cam compatibility (preventing excessive lever wear) • Variant 2 (Black valve levers & gray cams): Express lowering (4.0 - 4.3 mm) & height adjustment (7.2 - 7.4 mm) • Variant 3 (Black levers with yellow-banded/inscribed Bowden cable): Express lowering (2.5 mm) & height adjustment (7.2 - 7.5 mm) Timestamps: 0:00 - Introduction & bench repair setup with compressed air (6.5–8.0 bar) 0:24 - Standard seat: Engaging express lowering button 0:36 - Standard seat: Measuring express lowering Bowden cable clearance (2.5 mm) 0:56 - Adjusting & securing the Bowden cable jam nut 1:13 - Standard seat: Seat height adjustment cable calibration (7.8–8.3 mm) 1:43 - Final tolerance verification (8.07 mm) & functional test 2:03 - Production variant 2: Black valve levers & gray cams compatibility 2:31 - Variant 2 tolerances: Express lowering (4.0–4.3 mm) & height (7.2–7.4 mm) 2:51 - Production variant 3: Modified button & yellow-marked Bowden cable 3:20 - Variant 3 tolerances: Express lowering (2.5 mm) & height (7.2–7.5 mm) 3:40 - Identifying factory yellow cable bands vs. yellow inscriptions Subscribe to MBOwnersClub for more professional Mercedes-Benz truck repair guides, workshop tutorials, and fleet maintenance tips!