Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Volvo C70 2.3 53, StandardFACTORY OEM SERVICE PROCEDURE
Ignition, Fuel And Engine Control Systems - Removal, Replacement And Installation (Convertible)
- Accelerator Module (B5234T3; 1999-2002)
- Accelerator Module (B5244T; 2000-2002)
- Accelerator Module (B5254T; 1999)
- New Replacement Part Flywheel (1998-1999)
- Repair (B5234T3; B5254T; 1998)
- Fuel tank, replacing
- Fuel tank, replacing
- Notes
- Safety
- Preparations
- Disconnect the connectors
- Disconnecting hoses
- Remove the fuel filler pipe
- Remove the fuel tank
- Remove front holders and hoses
- Disconnect hoses
- Removing the fuel filler pipe
- Transferring the fuel tank pressure sensor
- Removing the fuel pump (FP)
- Installing the fuel tank
- Installing fuel pump (FP)/level sensor
- Installing nuts
- Installing the fuel filler pipe
- Installing the fuel lines
- Installing the rubber cover on the fuel filler pipe
- Fuel tank, replacing
- Replacing fuel pressure regulator
- Replacing fuel tank pressure sensor
- Replacing the EVAP canister
- Replacing the EVAP canister shut-off valve
- Fuel tank, replacing
- Replacing Control System Components (B5234T3; 1999-2002)
- Knock sensor (KS), replacing
- Replacing camshaft position (CMP) sensor
- Replacing flywheel sensor
- Replacing ignition coils
- Replacing the engine control module (ECM)
- Intake Air Temperature Sensor (IAT Sensor), replacing
- Manifold absolute pressure (MAP) sensor, replacing
- Replacing lambda probes
- Replacing the throttle body (electronic throttle module)
- Replacing the turbocharger (TC) control valve
- Replacing Control System Components (B5234T9; B5244T7; 2003-2004)
- Replacing Control System Components (B5244S; 2000)
- Draining fuel tank
- Engine speed (RPM) sensor, replacing
- Heated oxygen sensor (HO2S), replacing
- Injector valve, replacement
- Pulse damper, replacement
- Replacing camshaft position sensor (CMP)
- Replacing canister purge (CP) valve
- Replacing electronic throttle module (ETM)
- Throttle body (electronic throttle module, ETM), replacing
- Replacing engine control module (ECM)
- Replacing ignition coil
- Replacing knock sensor (KS)
- Replacing oil pressure switch
- Replacing pedal module
- Replacing solenoid valve, air pump system
- Replacing the engine control module (ECM)
- Replacing thermostat
- Replacing VVT (variable valve timing) control valve
- Thermostat/temperature sensor, engine coolant, replacing
- Replacing Control System Components (B5244T; 2000-2002)
- Replacing Control System Components (B5254T; 1999)
- Thermostat/Temperature Sensor (B5234T3; 1999-2002)
- Thermostat/Temperature Sensor (B5244T; 2000-2002)
- Thermostat/Temperature Sensor (B5254T; 1999)
- Accelerator Pedal (AP) Module (B5244S; 2000)
- Carbon Filter Container (B5244S; 2000)
- Engine Control Module (ECM) (B5244S; 2000)
- Fuel Tank (B5244S; 2000)
- Heated Oxygen Sensors (Ho2S) (B5244S; 2000)
- Ignition Coil (B5244S; 2000)
- Instrumentation Sensors (B5244S; 2000)
- Pressure Switch/PRESSOSTAT (B5244S; 2000)
- Sensor Ignition/Control System (B5244S; 2000)
- VVT Control Valve (B5234T3; 1999-2002)
- VVT Control Valve (B5234T9; B5244T7; 2003-2004)
- VVT Control Valve (B5244T; 2000-2002)
- VVT Control Valve (B5254T; 1999)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.