Audi Shop Antioch, CA ?

[James Dupree]

Need some quick help if possible.
My uncles Audi A8 just developed a major coolant leak from the water pump area and he lives in Antioch CA. He needs to get it repaired ASAP and will probable end up towing it to the Audi Dealer in Walnut Creek if I can't find him a better solution. 
Anyone know a good shop in this area?
He won't wait long and will likely have it towed this evening or in the morning
Thanks
Jim