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Restore German Precision Under the Hood
A W124 coupe deserves an ignition system that matches its engineering pedigree, and factory wires from the late 1980s have long since lost their edge. The Granatelli GMS36-1931MPG MPG Plus Ignition Wires bring 0 ohm resistance technology to the 1988-1992 Mercedes-Benz 300CE 3.0L inline six, sharpening throttle response and helping the engine run the way it did when it left Stuttgart.
Key Features
- GMS36-1931MPG uses solid stainless steel connector cable for 0 ohm resistance
- Patented protector ring eliminates RFI and EMI interference
- 8mm fiberglass reinforced jacket resists heat and engine bay wear
- High temperature silicone boots rated to 500F, 1200F boots available separately
- Direct OEM replacement, no tuning or ECU changes required
- Stainless snap lock spark plug connectors for a secure, long lasting fit
Fitment Table
| Year Range | Make | Model |
|---|---|---|
| 1988-1992 | Mercedes-Benz | 300CE |
Specifications
| Detail | Value |
|---|---|
| MPN | GMS36-1931MPG |
| UPC | Not published by manufacturer |
| Brand | Granatelli Motor Sports |
| Engine Fitment | 3.0L inline 6-cylinder |
| Resistance | 0 Ohm |
| Jacket | 8mm fiberglass reinforced braid |
| Boot Temperature Rating | 500F standard, 1200F optional |
| Condition | New |
What's Included
- Complete set of GMS36-1931MPG ignition wires for all six cylinders
- Stainless snap lock spark plug connectors
- All hardware required for a direct installation
About Granatelli Motor Sports
Granatelli Motor Sports has spent decades engineering performance ignition components for street and race applications, building a reputation on the patented 0 ohm wire technology found in the GMS36-1931MPG and the rest of the MPG Plus lineup. The company backs its ignition wires with a comprehensive warranty and direct technical support for owners restoring classic European performance cars.
FAQ
What is the GMS36-1931MPG?The GMS36-1931MPG is a Granatelli Motor Sports MPG Plus ignition wire set built for the 1988-1992 Mercedes-Benz 300CE 3.0L inline six. It uses 0 ohm solid stainless connector cable to improve spark delivery over decades old factory wiring.
Will the GMS36-1931MPG fit a 1993 300CE?No. The 1993 300CE used a different 3.2 liter 24 valve engine and requires a different Granatelli part number. The GMS36-1931MPG is matched specifically to the 1988-1992 3.0L engine.
Is this a difficult installation on a Mercedes inline six?Installation is straightforward and follows the same one wire at a time process used on any distributor style ignition, though the engine bay is tighter than on many domestic vehicles, so patience helps.
Will the GMS36-1931MPG cause any diagnostic or electrical issues?No. The wires are a direct replacement designed to work with the factory ignition system without triggering fault codes or affecting the car's electronics.
How does the GMS36-1931MPG compare to OEM Mercedes wires?Original Mercedes wires rely on standard resistance cores that degrade with age and heat cycling. The GMS36-1931MPG uses a patented 0 ohm design intended to hold a stronger, more consistent spark over the long term.
What is the warranty on the GMS36-1931MPG?Granatelli Motor Sports ignition wires purchased through an authorized reseller carry a limited warranty against defects in materials and workmanship, with technical support available directly from Granatelli.
Can I install the GMS36-1931MPG myself?Yes. Most owners install this wire set themselves with basic hand tools, working one cylinder at a time to keep the firing order correct.
Does the GMS36-1931MPG fit both manual and automatic 300CE models?Yes. The GMS36-1931MPG is matched to the engine, not the transmission, so it fits 1988-1992 300CE models regardless of manual or automatic gearbox.
Install Instructions
- Allow the engine to cool completely and disconnect the negative battery terminal.
- Locate the factory ignition wires running from the distributor cap to each spark plug.
- Remove and replace one factory wire at a time with a GMS36-1931MPG wire to preserve the firing order.
- Grip the boot rather than the wire when disconnecting each factory wire to avoid damage.
- Route each new wire along the factory path and seat the boot firmly onto the spark plug.
- Connect the opposite end securely into the correct distributor cap terminal.
- Repeat for all six cylinders, verifying the firing order against the factory diagram.
- Reconnect the battery and start the engine to confirm a smooth idle with no misfire.
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