I had the Bentley and the Childers (?) for the Jetta. I bought the Childers since the Bentley didn't include the diesel version of the Jetta. Both are OK for most repairs, but I threw them out after buying the Service manual. The Service manual is far more complete. It does assume you know how to do a lot of things already, so for an inexperienced mechanic the Bentley is a better choice. When it comes to troubleshooting and more complicated tasks, the service manual is a must have.