Trusted Diesel Repair & Mobile Mechanic Services in Solvang, CA, Since 1997 At R&M Diesel, we provide professional automotive, diesel, and mobile mechanic services for drivers, truck and equipment repair, businesses, farmers, contractors, and fleet operators throughout Solvang, the Santa Ynez Valley, Santa Barbara, Ventura, and San Luis Obispo County. Conveniently located at 1120 Mission Drive #2 in Solvang, our experienced technicians deliver dependable repairs, honest service, and expert diagnostics to keep your trucks and equipment running at their best. We specialize in diesel engine diagnostics, maintenance, and repair for diesel pickup trucks, commercial vehicles, semi-trucks, agricultural equipment, heavy-duty work trucks, and fleet vehicles. Our expertise includes DPF (Diesel Particulate Filter) cleaning, regeneration diagnostics, emissions system repairs, DEF system service, EGR system diagnostics, and performance troubleshooting. Whether you're experiencing engine performance issues, fuel system problems, turbocharger failures, electrical faults, cooling system issues, DPF restrictions, or emissions-related concerns, our diesel specialists have the knowledge and equipment to diagnose and repair the problem correctly the first time. What sets R&M Diesel apart is our ability to bring professional repair services directly to you. Our fully equipped mobile mechanic truck allows us to perform repairs and diagnostics at your home, ranch, vineyard, workplace, job site, or roadside location throughout Solvang, Santa Ynez, Buellton, Los Olivos, Lompoc, and surrounding communities. This convenient service helps minimize downtime and gets you back on the road faster. Whether you need routine maintenance, advanced diesel diagnostics, DPF cleaning, fleet service, commercial truck repair, agricultural equipment repair, emissions system repairs, or emergency roadside assistance, R&M Diesel is your trusted local repair partner. Call R&M Diesel today to schedule service at our shop or request mobile mechanic service at your location.