Page 3 of 340

i !
  WELCOME  
 
 
Key  
   
Warning: 
 
this symbol marks warnings which it 
is essential to observe for your own 
safety, for the safety of others or to 
avoid any risk of damaging your vehicle.  
 
 
Information: 
 
this symbol draws your attention to 
additional information for better use of 
your vehicle.  
 
 
Protection of the 
environment: 
  this symbol accompanies advice 
relating to protection of the environment.  
 
 
Page reference: 
 
this symbol invites you to refer to the 
pages which provide details of the 
function.      
Thank you for choosing a 508. 
  This handbook has been designed to enable you 
to make the most of your vehicle in all situations. 
  Therefore, on the first few pages, you will find a 
detailed summary followed by a quick reference 
guide intended to make it easier for you to 
become familiar with your vehicle. 
  All of the details specific to your vehicle, 
comfort, safety, practical information, are then 
presented in this handbook, to increase your 
appreciation of the vehicle and to help you make 
the most of it.  
   
Each model may only be fitted with some 
of the equipment shown in this handbook, 
depending on the trim level, model, version and 
specification for the country in which it is sold.  
  
     
        
        Page 4 of 340

.
Contents
Instrument panel  20
Indicator and warning lamps  21
Gauges and indicators  31
Tr i p  c o m p u t e r   3 6
Instruments and controlsFamiliarisation
Remote control key  39
Alarm 48
Electric windows  50
Boot 52
Motorised tailgate (SW)  53
Panoramic sunroof (SW)  56
Fuel tank  58
Diesel misfuel prevention  59
Access
Front seats  61
Rear seats  66
Mirrors 68
Steering wheel adjustment  70
Interior fi ttings  71
Boot fi ttings (Saloon)  74
Boot fi ttings (SW)  75
Heating and Ventilation  80
Manual air conditioning  82
Dual-zone digital air conditioning  84
Quad-zone digital air conditioning  87
Rear screen demist - defrost  92
Programmable Heating/ Ventilation  93
Comfort
Star ting-switching off the engine  94
Electric parking brake  96
Manual parking brake  103
Manual gearbox  104
Gear shift indicator  105
Automatic gearbox  106
6 -speed electronic gear control gearbox  110
Stop & Start  114
Hill start assist  117
Head-up display  118
Speed limiter  121
Cruise control  123
Parking sensors  125
Parking space sensors  127
Driving
Lighting controls  129
Automatic illumination of headlamps  134
Headlamp adjustment  137
Directional lighting  138
Wiper controls  140
Automatic rain sensitive wipers  142
Cour tesy lamps  144
Interior mood lighting  145
Visibility 
     
        
        Page 6 of 340
4
Familiarisation
   
Keyless Entry and Starting 
 
This system allows you to unlock, lock 
and start your vehicle while keeping 
the key on your person and in the 
defined zone around the vehicle. 
   
39, 94 
 
 
 
 
Parking space sensor 
 
This system measures the size of a space and 
advises whether parking is possible. 
   
127 
 
 
 
 
Exterior  
 
 
Stop & Start 
 
This system puts the engine temporarily into 
standby during stops in the traffic (red lights, traffic 
jams, etc...). The engine restarts automatically as 
soon as you want to move off. The Stop & Start 
system reduces fuel consumption and exhaust 
emissions, and offers the comfor t of complete 
silence when stationary. 
   
114 
 
  
     
        
        Page 8 of 340
6
i
Familiarisation
  Open 
 
 
A. 
  Unfolding/Folding the key. 
   
B. 
  Unlocking the vehicle. 
 
 
Remote control key 
 
 
 
1. 
  Opening the fuel filler flap. 
 
 
Fuel t ank 
 
 
58 
 
 
 
 
Unlocking 
 
With the electronic key on your person and in the 
defined zone around the vehicle, pass your hand 
behind the door handle to unlock the vehicle, 
then pull on the handle to open the door.  
 
 
Locking 
 
With the electronic key in the defined zone 
around the vehicle, press with a finger on the 
door handle (at the markings) to lock
the vehicle.  
 
 
 
Keyless Entry and Starting 
system 
   
2. 
  Opening and hooking the fuel filler cap.  
  Tank capacity: approximately 72 litres
(or 55 litres according to version).     
Other functions... 
 
   
C. 
  Normal locking of the vehicle 
  Vehicle location. 
   
39 
 
  
     
        
        Page 10 of 340
8
Familiarisation
  Lighting of the indicator lamp indicates the state 
of the corresponding function. 
   
Switch panels 
 
 
Opening the boot. 
   
Opening the fuel filler flap.    
52, 53 
 
     
Massage. 
   
65 
 
 
   
48 
 
     
Alarm.    
Programmable heating warning lamp. 
   
58 
 
    
93 
 
     
Electric parking brake. 
   
96 
 
 
   
Star ting/stopping using the electronic 
key. 
   
94 
 
 
   
Deactivation of Stop & Start. 
   
115 
 
 
   
Head-up display
(on /of f, set tings). 
   
118 
 
 
     
Deactivation of parking sensors. 
   
126 
 
 
   
Parking space sensor. 
   
127 
 
    
Electric child lock. 
   
15 6 
 
     
Deactivation of the ESP/ASR system. 
   
160 
 
 
   
Adaptive lighting. 
   
135 
 
  
     
        
        Page 12 of 340
10
Familiarisation
   
9. 
 Fusebox. 
   
10. 
  Front door window demisting/defrosting 
vent. 
   
11. 
  Windscreen demisting/defrosting vent. 
   
12 . 
  Steering lock and star ting with the key. 
   
13. 
  Star ting using the electronic key. 
   
14 . 
  Audio equipment steering wheel controls. 
   
15. 
  Wiper/screenwash/trip computer stalk. 
   
16. 
  Central locking and hazard warning 
buttons. 
   
17. 
 Multifunction screen. 
 
Instruments and controls 
 
 
 
1. 
  Cruise control/speed limiter controls. 
   
2. 
  Headlamp height adjustment. 
   
3. 
  Lighting and direction indicator stalk 
   
4. 
 Instrument panel. 
   
5. 
 Driver's airbag.  
 Horn. 
   
6. 
 Gear lever. 
   
7. 
  12 V accessory socket  
  USB port /auxiliary socket. 
   
8. 
  Bonnet release lever.    
18. 
  Central adjustable air vents. 
   
19. 
 Passenger's airbag. 
   
20. 
  Side adjustable air vents. 
   
21. 
  Glove box /Passenger's airbag deactivation. 
   
22. 
  Electric parking brake. 
   
23. 
  Central armrest with storage. 
   
24. 
  Storage (according to version). 
   
25. 
 Audio system. 
   
26. 
  Heating/air conditioning controls.   
     
        
        Page 19 of 340
.
17
Familiarisation
  Passenger safety 
 
 
 
1. 
  Open the glove box. 
   
2. 
  Inser t the key. 
   
3. 
 Select position:  
   "ON" 
 (activation), with front passenger or 
"for wards facing" child seat,  
   "OFF" 
 (deactivation), with "rear facing" 
child seat. 
   
4. 
  Remove the key keeping the switch in the 
new position.  
 
 
Front passenger's airbag 
 
 
167 
 
    
 
A. 
  Front seat belts not fastened or unfastened 
warning lamp.  
 
 
Front seat belts and 
passenger's front airbag 
   
167 
 
     
B. 
  Airbag fault warning lamp. 
   
C. 
  Front passenger's airbag activation 
indicator lamp.     164 
  
     
        
        Page 20 of 340

18
i
!
Familiarisation
  Driving safely 
 
 
Stop & Start 
 
 
Going into engine STOP mode 
 
 
114 
 
   The  "ECO" 
 warning lamp comes 
on in the instrument panel and the 
engine goes into standby; with an 
  electronic gear control gearbox 
 and speeds 
below 4 mph (6 km/h), press the brake pedal or 
put the gear lever in position  N 
. 
 
 
Going into engine START mode 
   
Deactivation/Reactivation 
 
You can deactivate the system at any time by 
pressing the  "ECO OFF" 
 button; the button's 
warning lamp comes on. 
   
115 
 
 
   
115 
 
 
    The system is automatically reactivated 
every time the engine is star ted with 
the key. 
  Before refuelling or doing anything 
under the bonnet, you must switch off 
the ignition with the key.    The  "ECO" 
 warning lamp goes off 
and the engine restar ts  with an 
electronic gear control gearbox 
: 
   
 
-   with the gear lever in position  A 
 or  M 
 
release the brake pedal, 
   
-   or with the gear lever in position  N 
 and 
brake pedal released, move the gear lever 
to position  A 
 or  M 
, 
   
-   or engage reverse.  
  In certain circumstances, the STOP mode 
may not be available; the  "ECO" 
 warning lamp 
flashes for a few seconds, then goes off.   In certain circumstances, START mode may be 
invoked automatically; the  "ECO" 
 warning lamp 
flashes for a few seconds, then goes off.