Originally Posted by jay_bob

The W210/OM606 has no in tank fuel pump (same as the 123/124/126) just the lift pump at the injector pump. And it’s midway through the maze of hoses up front at the IP.

The later models (W211/OM648 or W211/OM642 or W164/OM642) and the 212/166 and later chassis do have the in tank pump.