2012年10月10日 · The fault was the K40 relay module, as suspected. I replaced the whole module, but it was probably a failure of the relay controlling the fuel pump (2nd from left when viewed from the side with the fuses). If my interpretation is correct, the no cranking symptom is a consequence of the failure of the K40 module to supply power to the fuel pump.

2013年5月11日 · I wonder about the fuse that sits in the F3 position in the K40 relay module. It all begin with starting problem and gearshift problem for this W210, E55-00. Change the battery, change the gearshift module, change the brake switch and I still can´t shift.

2023年11月5日 · E420 just cut off in mid drive and refused to start. The symptoms pointed to a faulty K40 relay that is known to give up. The following film describes some o...

2006年5月17日 · I found what appears to be a k40 relay, but not the k40 relay module described in previous posts. Both part suppliers said it is located "right front under hood", but I don't see anything that looks like the picture on their site. Does anyone know anything about the k40 relay itself and where it is located?

2017年4月16日 · 完全比不上舊W210 在台灣, 相對沒杜拜良好高速路的穩定性及空間感! 感覺比擁有過的Camry Hybrid 還差一點! 電路板K40繼電器! 看國外網站, 多數都是重新焊K40 接點! 老外實在厲害 ！ 會開直昇機 ,也會修車. 反正假日沒事! 一大早興致沖沖, 要把電路板拔掉! 剛好鄰居學電子車子的 ！ 停在後方問我在幹嘛！ 建議我把K40繼電器 ,用電子接點清潔劑清清就好! 先無需重新焊! 把K40繼電器清一遍 ,竟然一次啟動! 試了幾次都依樣! K40繼電器！ 最下方黑盒子. 話說:本來 …

Article «Scheme 6. Relay module (K40) (engines 602, 604, 605, 606)» from the section «Electrical equipment/Electrical circuits» car repair manuals «Mercedes-Benz W210» (W210) 1996-2002 years of release.

2013年1月3日 · Turning to fuses, the 4th fuse (7.5A) on the K40 p/n A0005400372 is blown. Annoyingly, this also powers the diagnostic socket on pin 2 so I cannot connect it to STAR. I replaced the fuse and it is fine until I try turning the ignition on and it blows straight away.

2023年7月28日 · If there are problems starting the engine and the lighting of warning lights on the instrument panel, one of the possible causes is the damage to the K40 relay which is located in the fuse keypad located in the engine compartment, on the passenger side, near the dome of the 'shock absorber: once the cover has been removed, this relay is easily ...

The notorious K40 overload protection unit is a well-known cause of starting, idling, and engine stumbling problems. This unit provides voltage to the control modules and electrical components, including the fuel pump, electric air pump, and horn. When the K40 malfunctions, these components don't get their required voltage.

2018年5月5日 · Turning to fuses, the 4th fuse (7.5A) on the K40 p/n A0005400372 is blown. Annoyingly, this also powers the diagnostic socket on pin 2 so I cannot connect it to STAR. I replaced the fuse and it is fine until I try turning the ignition on and it blows straight away.