Bosch cold start valve 0280170403 blue short Mercedes W124 W126 W116 R107 190 E SL
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Original Bosch cold start valve, blue-gray housing, refurbished. Bosch cold start valve 0280170403 with blue-gray housing and short nozzle tube, fits Mercedes models of the W201, W124, W126, W116, R107 and W460 series. Genuine, fully disassembled, cleaned and tested.
Fully disassembled and cleaned · Tested and fully functional · 5-year warranty
Genuine ✓Tested ✓Functional ✓
Every valve is a genuine Bosch part, fully disassembled, cleaned and function tested.
5-year warranty on this refurbished valve
Should a problem occur: send in the valve – we will repair or replace it. In addition, a 60-day return policy and free shipping within Germany apply.
| Your options | Condition | Warranty |
|---|---|---|
| Untested used part | Condition and function unknown | none |
| Refurbished genuine part (this listing) | fully disassembled, cleaned and tested, fully functional | 5 years ✓ |
How can you tell a cold start valve is defective?
The cold start valve of the Bosch K-/KE-Jetronic injects extra, finely atomized fuel into the intake plenum when starting the cold engine, enriching the mixture. It is controlled via the thermo-time switch, which limits the injection duration depending on temperature. If the valve fails, this additional cold-start enrichment is missing, and the cold engine starts poorly.
The valve is located on the intake plenum or the intake bridge, bolted via a 2-hole flange. Fuel supply is via an annular fitting, and it is controlled via a 2-pin connector.
Fits the following vehicles
W201
- 190 E 2.0 (1986–1993)
- 190 E 2.6 (1986–1987)
W124
- 260 E (1985–1987)
- 300 E (1985–1987)
- 300 CE (1987, C124)
W126
- 260 SE (1985–1987)
- 300 SE (1985–1987)
- 300 SEL (1985–1987)
- 380 SE/SEL/SEC (1981–1985)
- 420 SEL (1986–1989)
- 500 SE/SEL/SEC (1984–1985)
- 560 SEL/SEC (1986–1991)
W116
- 350 SE/SEL (1974–1980)
- 450 SE/SEL (1974–1980)
R107
- 350 SL (1974–1980)
- 450 SL (1974–1980)
- 380 SL (1981–1985)
- 560 SL (1986–1989)
- 300 SL (1985–1987)
- 350 SLC (1974–1980, C107)
- 450 SLC (1974–1980, C107)
W460 (G-Class)
- 230 GE (1982–1985)
- 280 GE (1979–1987)
Part numbers: 0280170403 (Bosch). Price is per piece. Scope of delivery: see product photos.
Which variant fits? Comparing the three Bosch numbers
| Bosch number | Identifying feature | Fits |
|---|---|---|
|
0280170403 black · blue short (this listing) |
black or blue-gray, short nozzle tube | M102/M103/M116/M117 up to 08/1987 |
| 0280170412 blue · green |
blue or green, long nozzle tube | M103 six-cylinder from 09/1987, Ferrari K-Jetronic |
| 0280170447 yellow |
yellow housing | 24V engines, 190 E 1.8, 200 E / 230 E |
⚠ Important: Compare the variant before buying
Blue-gray housing with short nozzle tube — this is the decisive identifying feature of this variant of the Bosch 0280170403. Technically it is identical to the black variant of the same number; the color difference only indicates the production period. Do not confuse it with the also-often-blue valve 0280170412, which has a long nozzle tube and is not interchangeable. Please therefore compare your old part's number 1:1 with our listing.
Does not fit:
- M103 six-cylinder from 09/1987 (require 0280170412 with long nozzle tube)
- 24V engines (require 0280170447)
- G-Class W463 from 1990 (require 0280170450)
- older 280-series up to ~1977 (0280170022/0280170023)
- BMW engines (BMW version: 0280170043 – transposed digits!)
- Diesel engines
Does this part fit your car? Send us the VIN (chassis number) and model year – we'll check it for free: 0179 8991069 (Mon–Fri 8 am–6 pm) or via our contact form.
FAQ
What warranty is provided?
5-year warranty on this refurbished valve. If there is a problem, send it in – we will repair or replace it. In addition, there is a 60-day return policy and free shipping within Germany.
Does this valve fit my vehicle?
First compare the stamped marking on your old valve: this variant has a blue-gray housing with a short nozzle tube and the number 0280170403. If unsure, we'll check the fit using your VIN (chassis number) free of charge.
What's the difference between the short and long nozzle tube on the Bosch 0280170403?
This version has a short nozzle tube and a blue-gray housing. The similar-looking, also often blue valve 0280170412, on the other hand, has a long nozzle tube and is not interchangeable. Technically identical to this version is the black variant of number 0280170403; there, the color difference only indicates the production period.
KFZTeile-Thot specializes in spare parts for classic Mercedes and classics – with in-house refurbishment for Bosch K-/KE-Jetronic components.
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