One problem related to dash wiring has been reported for the 2002 BMW 325. The most recently reported issues are listed below.
The left blinker started malfunctioning and, as a result, rear tailight bulb outage appeared on dashboard all other lights were ok. BMW dealership mechanic diagnosed tail light ground wiring issue: inspection revealed that wires were melted inside rear tail light housing and could cause fire. Recommended replacing both tail light components by adding an additional ground, carrier replacements for bulbs. Replacement supplies on work order included sockets, insulation housing, connectors, shrinking hose. After research on consumer websites, I found out many complaints about the same issue. My BMW 325i is only 9 years old (2002) with only 30,250 miles on it. This kind of fundamental flaw should be correct at BMW's expense, not ours. BMW needs to have a recall on this common and potential deadly issue.