97 C280, 35k miles.

Until the car is warmed up, the engine makes a regular noise like TSCH...TSCH...TSCH...TSCH... localized in the front engine area. For a while, I thought (hoped?) it might be the belts, but I am not so sure.

Could it be the valve lifter noise I often read about?

TIA

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Jean

97 C280, 36k miles
96 Subaru Impreza Outback Sport, 146k miles