DS 3: Practical information / Engine compartment
DS 3 2016-2026 Owners Manual
The engine shown here is an example for
illustrative purposes only.
The locations of the following components may
vary:
- Air filter.
- Engine oil dipstick.
- Engine oil filler cap.
Petrol engine

Diesel engine

- Screenwash fluid reservoir
- Engine coolant reservoir
- Brake fluid reservoir
- Battery/Fuses
- Remote earth point (-)
- Fusebox
- Air filter
- Engine oil filler cap
- Engine oil dipstick
Diesel fuel system
This system is under very high pressure.
All work must be carried out only by a dealer or
a qualified workshop.
Electric motor
Take care with objects or clothing that
could be caught in the blades of the cooling
fan or in certain moving components - risk of
strangulation and serious injury!
Before carrying out any work under the
bonnet, you must switch off the ignition, check
that the READY indicator lamp is off on the instrument panel and
disconnect the charging
nozzle if it is plugged in.

Electric motor
- Screenwash fluid reservoir
- Engine coolant reservoir (level only)
- Brake fluid reservoir
- Battery/Fuses
- Remote earth point (-)
- Fusebox
- 400 V electrical circuit
- Emergency circuit-breaker for emergency
services and maintenance technicians
For more information on the Charging system
(Electric), refer to the corresponding section.
Stop
& Start
Before doing anything under the bonnet,
you must switch off the ignition to avoid any
risk of injury resulting from an automatic
change to START mode...
Check all of the following levels regularly in
accordance with the manufacturer's service
schedule. Top them up if required, unless
otherwise indicated...
Other information:
With Diesel engines, the fuel system must be
primed if you run out of fuel.
Before starting to prime the system, it is essential
to put at least 5 litres of Diesel into the fuel tank.
For more information on
Refuelling and on
Misfuel prevention (Diesel), refer to the
corresponding section...
Observe the driving regulations and remain
vigilant whatever the traffic conditions.
Monitor your environment and keep your
hands on the wheel to be able to react to anything
that may happen any time.
Drive smoothly, anticipate the need for braking
and maintain a longer safety distance, especially
in bad weather...