Maintenance

Chapter overview

• 1 Engine list
  1
• 2 Service work
  5
• 2.1 Information about flexible or fixed service
  5
• 2.2 Service tables up to model year ►2020
  8
• 2.3 Service tables as of model year 2021►
  17
• 3 General information
  25
• 3.1 General warnings for working on high-voltage system
  25
• 3.2 Raising vehicle on lifting platform or trolley jack
  25
• 3.3 Entry in digital service schedule or service schedule
  27
• 3.4 Severe operating condition
  27
• 3.5 Vehicle data sticker
  28
• 3.6 Vehicle diagnostic tester
  29
• 3.7 Vehicle identification number
  31
• 3.8 Countries with hot climate
  32
• 3.9 Country overview for petrol not compliant with EN 228
  32
• 3.10 Country overview for diesel not compliant with EN 590
  33
• 3.11 Engine code and engine number
  34
• 3.12 Countries with high levels of dust
  34
• 3.13 Identification plate
  35
• 3.14 Shortened intervals for spark plug replacement
  36
• 4 Descriptions of work
  41
• 4.1 Swivel joints and suspension link mountings: inspecting
  43
• 4.2 All-wheel drive coupling: changing oil
  44
• 4.3 Automatic headlight control and static cornering light: checking function
  48
• 4.4 Automatic gearbox: changing ATF (09P gearbox)
  49
• 4.5 Battery (12V): checking battery terminal clamps for secure seating
  50
• 4.6 Battery (12V): checking with battery tester (always refer to workshop manual)
  53
• 4.7 Status of battery (12V): reading - sending diagnosis protocol via online connection
  54
• 4.8 Front passenger front airbag: checking key switch and “ON/OFF function”
  54
• 4.9 Tyres: checking condition, wear pattern, tyre pressure and tread depth
  55
• 4.10 Brake and clutch system: change brake fluid
  62
• 4.11 Brake system and shock absorbers: inspecting for leaks and damage
  69
• 4.12 Brake pads/linings: check thickness and condition of brake discs, front and rear
  69
• 4.13 Brake fluid level: checking
  72
• 4.14 6-speed dual clutch gearbox (DSG) 0D9: changing gear oil and filter
  74
• 4.15 7-speed dual clutch gearbox (DSG) 0DL: changing gear oil
  74
• 4.16 7-speed dual clutch gearbox (DSG) 0GC: changing gear oil
  74
• 4.17 Diesel fuel filter: draining
  74
• 4.18 Diesel fuel filter: renewing
  75
• 4.19 Diesel particulate filter: checking
  77
• 4.20 Electric windows: checking positioning (open and close functions)
  78
• 4.22 Boots: inspecting
  79
• 4.23 Head-up display (HUD): removing protective film
  79
• 4.24 Interior and exterior body: inspecting for corrosion with doors and flaps open
  79
• 4.25 Poly V-belt: renewing
  80
• 4.26 Poly V-belt: checking condition
  80
• 4.27 Cooling system: checking frost protection and coolant level
  82
• 4.28 Air filter: cleaning housing and renewing filter element
  85
• 4.29 Multi-purpose additive for diesel fuel: adding
  92
• 4.30 Multi-purpose additive for petrol fuel: adding
  94
• 4.32 Engine cover panel “top”: removing and installing
  96
• 4.34 Engine compartment cover (noise insulation) “bottom”: removing and installing
  100
• 4.35 Engine oil level: checking
  100
• 4.36 Engine oil: draining, renewing oil filter and replenishing engine oil
  101
• 4.37 Engine oil: capacities and specifications up to model year ►2020
  110
• 4.38 Engine oil: capacities and specifications as of model year 2021►
  112
• 4.39 Panorama sliding roof with rear panorama roof
  113
• 4.40 Road test: performing (driving behaviour, noises, air conditioner etc.)
  116
• 4.41 Wheel securing bolts: tightening to specified torque
  116
• 4.42 Reducing agent (AdBlue®/DEF): replenishing
  118
• 4.43 Reducing agent (AdBlue®/DEF): changing
  122
• 4.44 Tyre pressure indicator: calibrating
  122
• 4.45 Tyre mobility set: checking
  123
• 4.46 Window wash/wipe system and headlight washer system: checking function
  124
• 4.47 Headlight adjustment: checking halogen headlights
  128
• 4.48 Headlight adjustment: checking LED headlights with cornering light
  131
• 4.49 Headlight adjustment: checking LED headlights
  137
• 4.50 Headlight adjustment: checking fog lights
  141
• 4.51 Sliding sunroof drains: checking for blockage, cleaning if necessary
  143
• 4.52 Service interval display: resetting
  143
• 4.53 Service interval display: recoding
  145
• 4.54 Track rods: checking clearance, attachment and boots
  146
• 4.55 Dust and pollen filter: cleaning housing and renewing filter element
  146
• 4.56 Selective wheel torque control: change oil in left and right clutch chambers
  146
• 4.57 Transportation mode: switching off
  147
• 4.58 Transportation devices: removing blocking pieces
  147
• 4.59 Clock and date: setting
  149
• 4.61 Water drain valves at rear: check for blockage, clean if necessary
  150
• 4.62 Toothed belt (petrol engines): renewing
  151
• 4.63 Camshaft drive toothed belt (diesel engines): renewing
  151
• 4.64 Spark plugs: renewing
  151
• 5 Exhaust emissions test
  165
• 5.1 Exhaust emissions test for petrol engines
  165
• 5.2 Exhaust emissions test for diesel engines
  167
• 6 Glossary
  171
• 7 \---Change history---
  174