Throttle Potentiometer Cover Guard For BMW R1200GS & R1150GS - 2004 to 2013

Throttle Potentiometer Cover Guard for BMW R1200GS and R1150GS

The throttle potentiometer — also referred to as the TPS, or throttle position sensor — is the sensor mounted on the right side of the throttle body or carburettor that reports throttle position to the ECU in real time, allowing the engine management system to calculate fueling and ignition timing accurately. On the air-cooled and oil-cooled GS models produced from 1999 through 2013, this sensor occupies an exposed position on the right side of the engine, partially shielded by a small plastic cover that is frequently absent on older machines.

The BMW R1200GS and R1150GS were designed for genuine off-road use, and the throttle position sensor sits in a position that receives direct road and trail debris throughout normal riding. Gravel kicked up at motorway speeds impacts the sensor housing with meaningful force, water can enter around the sensor body during river crossings or sustained rain, and a cover that has cracked or gone missing leaves both the connector and the sensor body fully exposed to the elements. The failure symptoms are recognizable — a stumbling throttle response, a fault code at idle, or erratic fueling that appears to clear when the bike is warm and dry, only to return whenever conditions are wet.

Why the Throttle Potentiometer Is Vulnerable

Unlike sensors that are tucked inside fairings or positioned high on the frame, the TPS on these GS generations sits low on the right side of the engine, at approximately the same height as the footpeg hangers. On the R1200GS in particular, the sensor is located just inside the intake side of the right cylinder head, in a position that receives both upward spray from the front wheel and lateral spray from the right side under braking on gravel or loose surfaces.

The original BMW cover addresses this exposure directly, but on bikes that have seen crash damage, been run without bodywork, or simply aged to the point where the original plastic has become brittle, that cover is frequently missing or cracked beyond function. Sourcing a direct replacement through the BMW dealer network involves a part number lookup, potential lead time, and a price that most owners find disproportionate for a small protective shield — making an aftermarket alternative the practical solution.

Protection and Fitment

This Throttle Potentiometer Cover Guard clips or screws directly onto the throttle potentiometer housing using the same mounting points as the original BMW component, providing a direct physical barrier between the sensor body and incoming debris, water, and gravel. The fit is precise enough that there is no movement or vibration once installed, and the design does not obstruct the throttle cable routing or interfere with the sensor connector in any way. The cover is manufactured from UV-stabilized ABS polymer, which resists brittleness and discoloration over time — the same failure mode that renders many original covers ineffective on older bikes.

This guard is compatible with the BMW R1200GS from 2004 through 2012, the R1200GS Adventure from 2006 through 2013, the R1150GS from 1999 through 2004, and the R1150GS Adventure from 2001 through 2005 — the air-cooled and oil-cooled generations that share the same throttle potentiometer mounting geometry. Browse related parts and protective accessories in our BMW GS parts and accessories collection.

Installation

The cover fits directly onto the existing sensor housing using the original mounting points, requiring no wiring, drilling, cutting, or adhesive of any kind. The installation process is fully reversible and takes a matter of minutes alongside a standard service, inspection, or wash-down. No specialist tools are required, and the guard can be removed and refitted without affecting the sensor or its connector.

Frequently Asked Questions

Does this fit the 2013 R1200GS as well?

The 2013 model year marked BMW's introduction of the liquid-cooled R1200GS, which uses a fundamentally different engine architecture and a different throttle position sensor mounting arrangement. This cover is designed for the air-cooled and oil-cooled generations — 2004 through 2012 for the standard R1200GS, and 2006 through 2013 for the R1200GS Adventure, which continued with the air-cooled engine into that final year. Buyers with a 2013-registered machine should confirm whether their bike is the outgoing air-cooled generation or the new liquid-cooled model before ordering.

What happens if the throttle potentiometer is already damaged?

A damaged or corroded TPS will typically produce stored fault codes and inconsistent throttle response that do not resolve simply by fitting a protective cover. If these symptoms are already present, the sensor itself should be inspected and replaced as necessary before the guard is installed. This cover functions as a preventive measure against future damage and ingress — it is not a repair for a sensor that is already faulty or internally corroded.

Is this sold as a single unit or a pair?

This guard is sold as a single unit. There is one throttle potentiometer position on these GS models, located on the right side of the engine, and a single cover provides complete protection for that sensor. No additional purchase is required for standard fitment on any of the compatible models listed.

Free shipping on every order in the US. Every part is covered by a 1-year warranty and can be returned within 30 days of receipt.