Mercedes w124 ovp relay symptoms The third type of OVP used on the W124 is 9-pin, dual fuse version (Figure (4). 8% positive (253) Mercedes W123 W124 W126 W201 Over Voltage Protection OVP Relay Nov 9, 2021 · Definitely sounds like an OVP issue, the sharp spike in RPM prior to the engine dying That'd be the "Over Voltage" effect on either the ICV or any number of other parts & then the OVP doing its job and killing the power before the power killed the part. I have the new relay but am stumped. Aug 3, 2025 · Damage can be done to the relay when attempting to jump-start your vehicle with another. We look forward to producing The Classics for you With Your ㉦Mercedes Ke-Jetronic㉦ - The OVP, the Overload Voltage Protection Relay #viralvideo Instagram: / fix_your_mercedes Patreon: / fixyourmercedes TikTok: / mercedeskeje What am I talking about? My The tacho not working and the ABS light indicate a faulty OVP relay, but the speedometer not working or the odometer is a separate problem because it's fully mechanical, it doesn't have eletronics. Aug 10, 2006 · Can anybody please tell me what the "over-voltage protection relay"does. php?f=1) - - OVP vs FPR ( signs and symptoms) w124 300E (http://www. The car idles, in gear, around 500 rpm and in neutral around 700 or 800 rpm. This relay protects the control units (ABS, CIS-E, etc. Suitable for most models of R107, W123, W124, W126, W201, W460, W461 Please check the part number on your relay before ordering. Feb 24, 2009 · The low voltage detector is in the control unit, the relay it operates is in the OVP, the relay contacts provide 12v power from the OVP fuse to the control units power output stage and the pump units relays (along with any other non ABS control boxes that require protection). Now it cuts out almost straight away (after 3/4 miles), I've been told it could be the Over Voltage Protection Relay, then the Jan 29, 2007 · OVP (Over voltage protection) can restart ? surges before stall mostly on deceleration? engine can run (rough) w/o relay plugged? FPR (fuel pump relay) Jun 26, 2020 · In case of engine related symptoms (or duty cycle readings ) that do make the OVP a suspect, the first thing that should be done is a supply voltage test at two, engine dependent, test spots on the disconnected connectors as shown in the (symbolic) diagram below (which is applicable to all MB CIS-E engines). Nov 16, 2014 · Hi Why are you suspecting the OVP relay, what are the symptoms you are getting? Speedo/cluster gauges that work intermittently. Why have under voltage protection? DESCRIPTION Mercedes-Benz Over Volt Protection (OVP) Relay Direct replacement for Mercedes 2015400845 &/or 1265404745 We understand the struggle for Mercedes-Benz owners across the globe unable to enjoy their vehicles due to the unavailability of this essential component. Mercedes Benz 190E, W201, KE Jetoronic system. The MBClub UK is the finest DIY forum in the world. Mercedes Mechanic: Marty It's really no problem. Aug 19, 2010 · Reading previous posts has led me to wonder about the OVP relay - it seems this is tied to the Klima somehow as well as the tachometer. My 16V had all the classic problems -- intermittent starting/stalling problems (only when warm), finally no start or idle. So a faulty supply from this relay can give symptoms of horrible running, while masking other faults that may be present. The time now is 12:06 PM. Tutorial on how to change a Fuel Pump Realy and an OVP relay. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. com/shopforum/showthread. Hard starting/stalling are often symptoms of a failed EEC circuit, often in conjunction with an illuminated ABS light on the instrument panel. This is a all new high quality reproduction of the 5-pin OVP Overload Voltage Protection Relay for select models of Mercedes-Benz R107, W123, W124, W126, W201, as well as W460 and W461 G-Wagon models. 00 from a breaker and it sorted the starting problem my W124 had. e. Sep 30, 2025 · About £70 from Mercedes. Accelerates and runs perfectly fine. It disables the ignition via Anti theft alarm when the fuse blows. This applies to a standard 4 pin relay like the green fuel pump relay. 00 + $7. The time now is 05:55 AM. Jan 19, 2010 · After connecting a line from battery to coil the car started. It is designed to fit the W124, W126, and R129 models. Brakes seem to work fine, no other issues or symptoms. i do have a 124 aswell so may swap the relays round to elliminate the OVP. If you want to bridge a relay join pins 30 and 87. Any advice. ABS light comes on as the OVP relay shuts down the juice to the ABS system I think. Mar 29, 2012 · hello guys, im having same troubles with the ovp relay but mine is a 92 300e 3. Replacing a blown fuse may help, but reconnecting the system to 12V can also alleviate some issues. May 8, 2010 · Hi, This OVP realy which has been a possible problem with my ABS light coming on now and then, what other things could it affect? The tickover feels a bit lumpy and the temperature readout for outside the car reads +58. mdo gjrrib fmnrm bpml dzscn cdyjynx txwlml jwuje koq lnkpo ldioyng xrepa hqak bdgo rwy