NAPA should have the tool you need to remove the head bolts. I bought mine there when I removed the head on my W201.

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1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible

They are torx fasteners. You should be able to purchase the proper sockets at NAPA.

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Jim

Yeah I have a torx set for torx screws. I'll find a torx socket for a bolt head. Back to harbor freight. I need to replace those bolts?

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My Daily : 96 E-300 Diesel with 195,000 miles
Retired: 92 300D 2.5 T 345K miles and for sale
Retired: 95 E320 157K miles and currently parked with blown engine

Both retired cars are for sale as is my w124 shop inventory