Welcome to the first inexpensive CIS fuel injector tester for the home mechanic. This bench mount tester will allow you to check the release pressure and spray pattern of your injectors. It will not accurately measure quantity of fuel delivered nor the release balance between the ... Read More »

For me 2010 is going to be the year of the transmission. It is hard to believe I have been working on a transmission repair manual for the past 6 years I Just the other day I was looking at an email I wrote to a customer in 2006 telling him the transmission manual should be out by ... Read More »

Brand New Release! This manual writing by Kent Bergsma will walk you step by step through the process of removing and replacing a Mercedes steering lock assembly. This can be a very frustrating job if you don't know some of the factory secrets. For anti-theft reasons the engineers ... Read More »

We decided that MARCH will be Ignition lock repair month. Talk about March madness!  Lock problems on your Mercedes can drive you mad. During this month we will be offering a number of lock related items on sale. Some with have special tools and instructions included. When we ... Read More »

Troubleshooting an annoying shift problem must first start with the vacuum modulator. This vacuum control unit mounted on the side of the transmission must be tested and adjusted to specs BEFORE you move on to other adjustments. Unfortunately this can not be done by guess or by ... Read More »