VolvoHydraulic Parts

91799320 — Egr Valve 074131503 91799320 For Volvo 850 V70 S70 S80 Audi 100 C4 A6

This EGR Valve is designed to recirculate a portion of exhaust gas back into the engine's combustion chambers to reduce NOx emissions. It is manufactured to meet strict emissions control standards, providing precise control over exhaust gas flow, unlike a faulty valve that may stick open or closed. Operators may notice a check engine light illuminated, rough idling, or a decrease in engine performance and fuel economy if this EGR valve is malfunctioning.

Egr Valve 074131503 91799320 For Volvo 850 V70 S70 S80 Audi 100 C4 A6 – Part No 91799320 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryHydraulic Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeExhaust Gas Recirculation (EGR) Valve
MaterialAluminum alloy and high-temperature seals
ApplicationEmissions control system
Service LifeReplace as needed based on diagnostic codes
CompatibilityVolvo 074131503, Audi 074131503
ConditionNew — OEM specification aftermarket

Failure Symptoms

A common initial symptom of a faulty EGR valve is the illumination of the check engine light, often accompanied by rough idling or hesitation during acceleration. If the valve is stuck open, the engine may run poorly and experience a loss of power, while a valve stuck closed can lead to increased emissions and potential engine knocking. Prolonged operation with a malfunctioning EGR valve can result in failed emissions tests and potential damage to other engine components due to increased combustion temperatures.

Installation Tip

Ensure the EGR passages are thoroughly cleaned of carbon deposits before installing the new valve. Do not overtighten the mounting bolts, as this can warp the valve body.

Service Note

When replacing the EGR valve, inspect the intake manifold and exhaust system for carbon buildup and clean as necessary.