Key Fob Replacement for 1997-2014 Mercedes Benz - 4 Button 2-Pack

In this review the focus is a practical replacement for older Mercedes key fobs - a 2-pack of 4-button remotes compatible with 1997-2014 models. The bottom line: this kit is for owners who need a ready-to-fit, OEM-quality shell and electronics that match FCC ID IYZ3312 / IYZDC and operate at 315 MHz. It is best chosen when the original key has the same button layout and a locksmith or dealer will handle cutting and programming, since self-programming is not available.

Key Features

• Compatibility: Works with a broad range of Mercedes models from 1997 to 2014 including C, E, S, G, M, R and 300 SL Series when the original remote matches the 4-button layout.
• Factory-equivalent electronics: Includes pre-installed electronics and battery so the fob arrives ready for dealer or locksmith programming and testing.
• Frequency match: Operates at 315 MHz which aligns with the original FCC ID IYZ3312 / IYZDC remotes used on these model years.
• Durable construction: Manufactured from premium plastic materials and described as shockproof to withstand daily use and maintain a factory feel and weight.
• Complete functions: Replaces lock, unlock, trunk release and panic alarm functions so it behaves like the original factory remote after proper programming.
• Warranty and support: Comes as a 2-pack with a 24-month warranty and lifetime support for returns or refunds if faults occur.

Who It's For

This replacement fob is aimed at Mercedes owners with older vehicles whose remote shell or electronics are damaged or lost, and who want a near-original replacement without sourcing an expensive dealer-only part. It is especially useful when the buyer has confirmed button layout and frequency and plans to use a qualified locksmith or dealer for cutting and programming.

It is not ideal for people who expect plug-and-play self-programming or who cannot access professional key programming services; those users should look for dealer-provided or manufacturer-specific key solutions that include on-site programming.

Pros & Cons

Pros

• Includes electronics and battery pre-installed so the remotes arrive ready for programming and testing.
• Good value as a 2-pack with an OEM-style feel, weight and button functions comparable to original remotes.
• Wide model compatibility across 1997-2014 Mercedes lineups when the original button layout matches.
• Backed by a 24-month warranty and lifetime support for returns or refunds.

Cons

• Self-programming is not available, so professional cutting and programming are required.
• Build quality and programming success received mixed feedback from users, so results can depend on locksmith setup.

Specifications

FCC ID	IYZ3312, IYZDC
Part Number	IYZ3312, IYZDC
Frequency	315 MHz
Buttons	4 buttons (Lock, Unlock, Trunk, Panic)
Package	2x remotes with electronics and battery pre-installed
Compatibility	Mercedes 1997-2014 (C, E, S, G, M, R, 300 SL Series, Sprinter)
Warranty	24 months + lifetime support

Our Verdict

For owners of 1997-2014 Mercedes models who need a cost-effective, OEM-quality replacement remote, this 2-pack delivers the correct frequency, button layout and pre-installed electronics so professional programming will restore full remote functions. It represents good value if you accept the necessary dealer or locksmith step and want a durable, factory-like feel at a fraction of original part costs.

Frequently Asked Questions

Will these remotes program themselves?
No. Self-programming is not available; each remote must be cut and programmed by a qualified dealer or locksmith.

Do the remotes include batteries?
Yes. Each key fob ships with its electronics and battery pre-installed so they are ready for professional programming and testing.

How do I confirm compatibility with my vehicle?
Make sure your original remote has the same 4-button layout and matches FCC ID IYZ3312 or IYZDC; check the vehicle fitment tool or product description for full model coverage.