




⚡ Keep your Mercedes purring with Bosch precision – because your engine deserves the best!
The Bosch 0261231188 OE Engine Knock Sensor is a premium, original equipment replacement part designed for select Mercedes-Benz models. Engineered for superior sensitivity and accuracy, it detects engine knock instantly, allowing the vehicle’s computer to optimize performance and prevent damage. Built to withstand extreme temperatures and deliver a linear signal across a broad frequency range, this sensor ensures long-lasting engine protection and efficiency. Compatible with a wide range of Mercedes-Benz vehicles, it offers a direct, hassle-free replacement that maintains factory standards.




































| ASIN | B00BHI1GGG |
| Best Sellers Rank | #164,305 in Automotive ( See Top 100 in Automotive ) #54 in Automotive Replacement Detonation Sensors |
| Brand | Bosch |
| Customer Reviews | 4.6 4.6 out of 5 stars (128) |
| Date First Available | October 9, 2013 |
| Exterior | Machined |
| Global Trade Identification Number | 04047024213456 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.002 ounces |
| Item dimensions L x W x H | 0.56 x 0.71 x 1.46 inches |
| Item model number | 0261231188 |
| Manufacturer | Bosch |
| Manufacturer Part Number | 0261231188 |
| Material | Metal, Plastic |
| Model | Knock Sensor |
| Mounting Type | Flange Mount |
| OEM Part Number | ABARTH%55353316, ABARTH%9617756080, ABARTH%9638423480, ALFA ROMEO%55353316, CHRYSLER%55353316, CHRYSLER%9617756080, CHRYSLER%9638423480, CITROËN%594623, DAEWOO%0031538928, FIAT%55353316, FIAT%9617756080, FIAT%9638423480, HOLDE%55353316, HOLDEN%55353316, INNOCENTI%55353316, INNOCENTI%9617756080, INNOCENTI%9638423480, JEEP%55353316, JEEP%9617756080, JEEP%9638423480, LANCIA%9617756080, LANCIA%9638423… |
| Output Type | Electrical |
| Position | Front |
| Product Dimensions | 0.56 x 0.71 x 1.46 inches |
| Specific Uses For Product | Temperature |
| Style | Robust |
| Upper Temperature Rating | 85 Degrees Celsius |
D**S
Fits my Mercedes W203 perfectly!
What is not to like? I bought this for my 2006 Mercedes C280 W203, it worked perfectly and looks exactly like the original. Easy to install if you follow directions to remove the electrical harness, fuel injection rail and intake manifold. Once these are lifted up, the part goes under where the intake manifold was seated. Easy to pop off the old one and slip the new one on, then reverse the order to replace everything back. You are now ready to go!
M**O
As expected, works great
As expected
R**S
High quality
High quality, fast shipping, it’s Bosch, built to last. I changed the old ones as a preventative maintenance after 26 years.
R**S
Great
Great
M**S
Pretty good
Seems like a good sensor, but should have torque specs somewhere in packaging or on product listing.
F**T
Well they work
But the reason the first ones quit, was the wires were mouse eaten through. Turns out you need continuity for them to function. Repaired wiring and installed new sensors and no more trouble code. Only took 4 hours to get to them under the intake manifold. And 3 hours to replace manifold. Your time may vary.
O**X
Perfect
Used it to listen into my engine while tuning and it worked flawlessly. It’s a wideband knock sensor so it picks up all frequencies and the ECU is just tuned to pick up certain once.
I**A
Excelente producto y de buena calidad lo recomiendo
M**1
Remplacement de la pièce d origine sur 206cc 2l 16s . Pas de souci
A**N
alles ok
A**I
Funziona
D**.
Good!
L**F
Funcionando, a ver lo que dura.
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