MasterTuning Fault code dictionary (DTC)

P1490 — left EGR device switch-over valve (Y58/2)

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: Mercedes-Benz
Meaningleft EGR device switch-over valve (Y58/2).
FamilyPowertrain (P)

Frequently asked questions

What does code P1490 mean?

left EGR device switch-over valve (Y58/2). left EGR device switch-over valve (Y58/2).

Can I keep driving with code P1490 active?

With caution: limp mode possible, have it checked soon

How do you fix code P1490?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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Where to get it fixed

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