How to Read Your RC Book to Find the Right Car Parts Every Time
One of the most common reasons a parts order goes wrong in India is misidentified vehicle specifications. A customer orders brake pads for a "BMW 3 Series 2012" — but does not specify whether it is a 316d, 320d, or 328i, front or rear axle, with or without sport package calipers. Each of these has different brake pad dimensions and friction requirements. The solution is simple, and it is sitting in your glove box: your RC book.
What the RC Book Contains That Matters
Your Registration Certificate (Form 23 or Smart Card RC) issued by the RTO contains the following fields relevant to parts ordering:
- Make and Model: Self-explanatory, but note the full variant name — "BMW 320d M Sport" vs "BMW 320d" have different brake specs. - Engine Number: The engine serial number, stamped on a physical plate on the engine block. For parts purposes, what matters is the first 3–5 characters, which encode the engine family code. - Chassis Number (VIN): The 17-character Vehicle Identification Number is the most important field. Every digit encodes specific information about your vehicle.
Decoding the VIN for BMW
For BMW vehicles, positions 4–8 of the VIN encode the model, engine, and body variant. Example: WBA3B31090F000000 — the "3B3" in positions 4–6 identifies this as a specific 3 Series variant. When you share this with Eurospares, our team can cross-reference it against the BMW parts catalogue (ETK) to identify your exact brake caliper type, engine code, transmission type, and even factory-fitted option packages that affect parts compatibility.
For Mercedes-Benz
Mercedes VINs use a different encoding: positions 4–6 identify the model class and body type, positions 7–8 identify the engine. A W204 Mercedes will have "WDD204" as the opening of the VIN. Sharing the full VIN tells us whether your C-Class has the OM651 four-cylinder diesel or the M271 turbocharged petrol, which determines filter part numbers, spark plug specifications, and timing chain components.
The Easiest Way to Order
When you contact Eurospares, share three things: your VIN (from the RC book or the dashboard VIN plate visible through the windscreen), the part you need in plain language ("front brake pads", "engine air filter", "front strut"), and your city for delivery. With the VIN, we can guarantee the correct fitment on the first order — no returns, no wrong-size headaches.