The Mercedes-Benz E430 was known for its classic W210 E-class appearance which was designed by Steve Mattin under design chief Bruno Sacco, heralding a brand-new design idiom for the Mercedes face-a characteristic twin-headlamp design. Although it was a car of many first innovations, it was hardly what you'd call perfect. Here are some of the problems with Mercedes-Benz E430 accessories and parts.
Drivers have complained of the supplier quality problem with the E430's harmonic balancer pulley. If the rubber insert of the harmonic balancer pulley delaminates, the pulley may grind through the timing chain cover and oil pan, causing thousands of dollars of damage. Mercedes-Benz USA issued Service Campaign #2005-02003 which directed the inspection of Mercedes-Benz E430 parts and required replacement at no cost. Replacement of the faulty part with the updated part was made the permanent solution to this problem.
Most E-classes end up with a sub 35 mile-per-hour clicking or rattling sound from the front end. This is usually due to worn out front-end sway-bar drop links. These can easily be replaced by anybody with knowledge of vehicle do-it-yourself.
Owners have reported rust problems on front spring perches-the top perches, which hold the top of the springs of the front suspension. The perches are spot welded to the chassis and factory-coated in weatherproof mastic to stop them from rusting; however, sometimes water gets behind the mastic causing the perches to rust and eventually to fail, leading to the collapse of the suspension.
W210s displayed body rust, notably on European-sold cars. Rust would sometimes appear spontaneously on panels such as doors and roofs on cars less than a year old. This was due to problems that arose from introducing water-based paint technology. Mercedes-Benz executives were criticized in the European press for not acknowledging this problem.
Other problems include rust on trunk lid near latch, on the Mercedes emblem on front hood, on door frames under window seals (recall), and on the front wings just above bumper; defective mass airflow meter; melted rear light bulb sockets; defective motor blower regulators; and rear window regulator failures.