G Class (W460, W461, W463) Produced 1980-2018: 290 GD, 290 GDT, 300 GD, 350 GD, 500 GE, G250, G300, G300 DT, G320, G500, G550, G55 AMG, G63 AMG

02 G500 Throttle Body cleaning

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Old Sep 18, 2025 | 08:14 PM
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2002 G500
02 G500 Throttle Body cleaning

While working on spark plugs, I decided to take throttle body out and clean. As suspected for 140k mile vehicle, it seems never done before. Now, much better than before.



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Old Sep 19, 2025 | 09:13 AM
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Good call. That kind of maintenance makes a huge difference on a high-mileage car. Glad it's running better.
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Old Sep 19, 2025 | 09:51 AM
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Originally Posted by Alexie
Good call. That kind of maintenance makes a huge difference on a high-mileage car. Glad it's running better.
I don't consider 140k a high mileage for G-Wagen, but it is aged. Plan to go over 300k with this baby.
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Old Sep 19, 2025 | 08:08 PM
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Originally Posted by SilverG500
I don't consider 140k a high mileage for G-Wagen, but it is aged. Plan to go over 300k with this baby.
That's the spirit. Those things are built like tanks. Just stay on top of the rust and keep up with the maintenance, and it'll probably outlast us all.
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Old Sep 20, 2025 | 09:21 AM
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Originally Posted by Alexie
That's the spirit. Those things are built like tanks. Just stay on top of the rust and keep up with the maintenance, and it'll probably outlast us all.
Thanks. Rust is another story as I live in Chicago land, salt belt. Plan to do the wire brush and fluid film the chassis and components underneath before the winter hits.
So far within 2,000 miles of ownership,
oil & filter change
all corner brake job complete
Purge Valve replaced
coolant, brake fluid, power steering fluid flush
differentials, transfer case fluid changed
AC compressor and condenser changed, refill R134a
rear SAM replacement
Apple Carplay head unit and six speakers (doors and cargo) installed
Extra remote key fob programmed
front window guides lubed
Throttle Body cleaned
LED light bar installed
Spark plugs and wires replace (in progress)

To come;
Fluid film under carriage coating
tires replacement
transmission fluid change





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Old Sep 20, 2025 | 02:17 PM
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Originally Posted by SilverG500
Thanks. Rust is another story as I live in Chicago land, salt belt. Plan to do the wire brush and fluid film the chassis and components underneath before the winter hits.
So far within 2,000 miles of ownership,
oil & filter change
all corner brake job complete
Purge Valve replaced
coolant, brake fluid, power steering fluid flush
differentials, transfer case fluid changed
AC compressor and condenser changed, refill R134a
rear SAM replacement
Apple Carplay head unit and six speakers (doors and cargo) installed
Extra remote key fob programmed
front window guides lubed
Throttle Body cleaned
LED light bar installed
Spark plugs and wires replace (in progress)

To come;
Fluid film under carriage coating
tires replacement
transmission fluid change
Sounds like you're staying on top of it. Fluid Film is a solid plan for the rust. That's a serious list of maintenance for 2k miles. You're tackling all the right stuff before winter.
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