No special access issues
The crag is inside a nature reserve which means that the Right of Public Access is strongly limited (i .e. you’re not allowed to camp, make fire, etc .).
No bolts are allowed at the crag.
Check even https://access.bergsport.se/sandsjobacka/.
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From Gothenburg, take motorway E6 southwards. Leave the motorway at exit 62, Lindomemotet (signs for Lindome/Spårhaga) and follow the signs towards Spårhaga. After about 6 km turn left onto road 158 (exit Lindåsmotet) and follow it southwards. Leave road 158 at the exit with signs towards Särö. Turn right here, then take first right (onto Gamla Särövägen) and then first right again onto Hagaryd Dala vägen. Follow this road and signs towards walking paths until you reach a car park.
The drive is about 29 km.
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From the car park follow the forest road until a lake on the left. Turn left here, follow a smaller path (green/blue track) for about 400 m and the crag shows up to the left. The walk is about 800 m.