657 battery for a diesel 2800tdi vehicle how much?

Based on the search results, it looks like the Atlas Car Battery - 657 that you asked about for your 2800tdi vehicle is available from PriceCheck for R1295. I'd also recommend taking a look at the Castrol GTX Diesel 15W-40 oils available. As a diesel engine, it's important to keep it well-lubricated, and Castrol is a great brand that comes in both 5L and 500ml sizes. The 5L option for R399 works out to be the best value if you change your oil regularly. Let me know if you have any other questions!