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.
Exhaust Gas RECIRCULATION: Description
All 5-cylinder diesel models are equipped with exhaust gas recirculation (EGR). The system reduces oxides of nitrogen (NOx) by allowing a small quantity of exhaust gas to enter the intake manifold. This lowers combustion chamber temperatures and reduces NOx formation. The system consists of an EGR valve, thermal vacuum valve, switch-over valves, vacuum control valve, several orifices and connecting hoses.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.