The Rev. Carl G. Mengering, 64, who was pastor of Faith Lutheran Church in Arlington for 22 years, died Tuesday at a hospital in Whiting, N.J., after a heart attack.

He left Faith Church here in 1976 to establish a new congregation, Christ Lutheran Church, in Whiting and was pastor there at the time of his death.

Mr. Mengering came to Faith Church after three years of service with the Army Chaplains Corps. For more than a year, he had served in the Korean conflict.

He later recalled that during his military service, as well as in later years, he did his best in his sermons "to correlate the teachings of Holy Scripture with the problems people must face each day." He called his preaching evangelical and scriptural "and by virtue of these designations, fundamental and conservative."

Because Faith Church was on Arlinton Boulevard, a busy highway even in the early days of his pastor ate there, Mr. Mengering found that many visitors came each Sunday. He aid he found this "cosmopolitan flavor both stimulating and rewarding."

Mr. Mengering did not start out to be a minister, He was born in Rhein, Saskatchewan, where his father owned a hardware store. He aimed for a career as a construction engineer.

"That's when whatever happened, happened, and I went into the seminary," he once explained. He emphasized that it was not a sudden persuasion or conversion, but a combination of circumstances that made him decide to serve the church.

But After graduating from Capital University in Columbus, Ohio, and taking graduate work in civil engineering at Ohio State University, his goals changed.

He went on to graduate from the Evangelical Lutheran Theological Seminary in Columbus in 1940.

Mr. Mengering served parishes in Hudson, N.Y., South Charleston, W. Va., and Castle Shannon, Pa., before his military service. He remained in the Army Reserves until retiring in 1970.

He is survived by his wife, the former Dorothy Klingbeil, of the home in Whiting; three sons, Mark, of Buffalo. Wyo., Timothy, of Arlington, and David, of Centreville, Va.; a daugther, Linda Susan McFarland, of Fort Campbell, Ky.; two brothers, Herbert, of Rhein, and Eric, of Pemberville, Ohio; three sisters, Elsie Propp, of Rhein, Hilda Yost, of Stroundsburg, Pa., and Marie Weeple, of Glasgow, Scotland, and three grandchildren.