There were some trim/upholstery changes during that run, so I'd not try to just swap the covers unless the are identical. Padding might be different enough that neither set would fit right.

You can just swap the seats, though.

You will have to install the wiring to get heated seats in the car without them.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!