For years, as a devoted enthusiast of the classic W123 and W124 Mercedes-Benz models, I approached the W210 generation with considerable skepticism. Like many purists, the design and technological shift felt like a departure from the robust engineering I had come to admire. However, spending time working on and driving various W210 models, including the E320 Mercedes, has led to a significant change of heart. I’ve not just been converted; I’ve become a genuine admirer. Owning both a W210 sedan and a 4-Matic wagon, alongside a ’98 E300 turbodiesel, has provided ample opportunity to understand these cars intimately.
What I’ve discovered is that the W210, particularly the E320 Mercedes, is surprisingly easy to diagnose and maintain. While the driving experience differs from the W124, once you address a few common quirks, the reliability of the E320 Mercedes shines through. The heart of the E320 Mercedes, the M112 engine, is genuinely bulletproof. A respected Mercedes-Benz mechanic in my area once stated he’d never had to remove the heads from an M112 engine – a testament to its robust design. Common issues are minor and easily rectified, such as valve cover breathers that may eventually leak, a straightforward fix for any DIY enthusiast. Even spark plugs are designed for longevity, typically lasting around 100,000 miles.
The transmissions in the E320 Mercedes W210, the 722.6 models, are also remarkably durable. While early versions had a bushing issue addressed in later models, regular fluid changes are key to longevity. Potential issues are usually limited to the electrical connector/bushing or the conductor plate – relatively inexpensive fixes. For those considering a W210, a facelift version E320 Mercedes is often recommended due to transmission upgrades and other improvements.
For gasoline E320 Mercedes models, preventative maintenance is straightforward. Beyond the standard new-to-you car checklist of belts, hoses, and fluids, replacing the crank position sensor is a wise and inexpensive precaution. Window regulators are known to fail eventually in W210s, so be prepared for potential replacements. For those who drive long distances, like myself, preemptive replacement of the transmission conductor plate and electrical plug during a fluid change is a worthwhile measure for peace of mind. Carrying a spare MAF sensor and K40 relay on road trips can also be a smart move for any older E320 Mercedes. Lastly, keeping the front wheel bearings properly packed is crucial, as they seem to be a slightly weaker point compared to earlier Mercedes chassis.
In conclusion, my journey with the W210, and specifically the E320 Mercedes, has been one of pleasant surprise. These cars, often initially overlooked by classic Mercedes enthusiasts, offer a blend of modern convenience and robust reliability, particularly when you understand their common maintenance needs. The E320 Mercedes W210 is truly an underrated gem in the Mercedes-Benz lineage.
