1985 Bmw 635 problems

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The BMW E24 is the first generation of BMW 6 Series range of grand tourer cars, which was produced from January 1976 to 1989 and replaced the BMW E9 coupé.

The E24 was produced solely in a 2-door coupé body style. All models used petrol straight-six engines, with the majority (aside from the M635CSi/M6 model) using a version of the BMW M30 engine family. The E24 shared many parts with the E12 5 series, and in 1982 was updated with parts from the newly released E28 5 series.

The M635CSi is the first of the BMW M6 model line and is powered by the M88/3 straight-six engine. In North America, the vehicle is badged as "M6" and uses the less powerful BMW S38 engine.

The eventual successor to the nameplate, the E63 6 Series, was released in 2004 after a 16-year hiatus. Although the E31 8 Series was introduced as production of the E24 was ending, the 8 Series is considered a separate model line and therefore not a successor to the E24.

1985 Bmw 635

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Common 1985 Bmw 635 problems

Based on the information provided in the sources, here is a list of common problems with the BMW 635 1985 based on complaints from owners:

  1. Electrical Problems:
    • Electrical issues were a common complaint among BMW 635 owners. These problems could manifest in various ways, such as intermittent stalling, no-spark conditions, and undiagnosed electrical maladies.
    • One specific issue reported was a no-spark condition, which could be attributed to problems with the electronic control unit (ECU) or voltage regulator.
    • Intermittent stalling was a prevalent issue, often caused by dying relays, dirty wiring, or faulty electrical components like the air flow meter.
    • Owners also faced challenges with the car's electrical accessories, such as non-functional speedometers, tachometers, ABS lights, power steering fluid leaks, and unreliable stereos.
  2. Fuel Injection Problems:
    • Fuel injection problems were another common issue with the BMW 635. These problems could lead to decreased engine performance, rough idling, and difficulty starting the car.
    • Causes of fuel injection problems included clogged fuel injectors, damaged fuel lines, and malfunctioning fuel pumps.
    • Troubleshooting fuel injection issues often required visual inspections, diagnostic tests, and potentially replacing components like fuel injectors.
  3. Rust Problems:
    • Rust problems on the body and chassis were frequently reported by BMW 635 owners, especially in cars from the 1978-1982 model years.
    • Rust issues were typically caused by exposure to moisture and salt on the roads, leading to corrosion and deterioration of the car's exterior.
    • Addressing rust problems required thorough visual inspections, checking for leaks, and potentially replacing rusted parts like tail light gaskets.
  4. Transmission Problems:
    • Transmission problems were a concern for BMW 635 owners, impacting the car's drivability and overall performance.
    • Specific transmission issues could include gear shifting difficulties, slipping gears, or unusual noises during gear changes.
    • Troubleshooting transmission problems often involved diagnostic tests, visual inspections of transmission components, and potentially repairing or replacing damaged parts.

By addressing these common problems with the BMW 635 1985, owners can better understand and maintain their vehicles to ensure optimal performance and longevity.

1985 Bmw 635 engine

How much is a BMW 635 worth?

A: The average price of a BMW 635CSi - Manual - E24 is $18,855.

How much horsepower does a 1985 BMW 635CSi have?

In November 1984, for the 1985 model year, the 633CSi was replaced by the 635CSi for the North American Market. This model uses the M30B34 engine, which produces 182 hp (136 kW) and 214 lb⋅ft (290 N⋅m) at 4,000 rpm.

What is the top speed of a 635 BMW?

The BMW E24 6 Series 635CSi top speed is 229 Km/h / 142 mph.

How many BMW 635 CSi were made?

BMW discontinued the M635 CSi in February 1989 when the last right-hand drives examples rolled out of the factory. Left-hand drive production had ended in December 1988. In total, 5855 were built. The E24 6-series was ultimately replaced by the much more expensive E31 8-series.

How much is a BMW 635 worth?

A: The average price of a BMW 635CSi - Manual - E24 is $18,855.

What is the top speed of a 635 BMW?

The BMW E24 6 Series 635CSi top speed is 229 Km/h / 142 mph.

How much horsepower does a 1985 BMW M635CSi have?

The M635CSi is powered by a 210 kW (282 hp) version of the BMW M88/3 straight-six engine.

How many BMW 635 CSi were made?

BMW discontinued the M635 CSi in February 1989 when the last right-hand drives examples rolled out of the factory. Left-hand drive production had ended in December 1988. In total, 5855 were built. The E24 6-series was ultimately replaced by the much more expensive E31 8-series.

1985 Bmw 635 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Bmw 635 problems, we found that the most common problems with these 2023 model year vehicles are:

  • Steering problems

The graph below shows statistics for all 1985 Bmw 635 vehicle components and the number of complaints received.

1985 Bmw 635 complaints

The NHTSA has received 1 complaints about various vehicle components related to the 1985 Bmw 635.

1996-10-29

STEERING PROBLEM

  • Date Of Incident: 1996-10-27
  • VIN: WBAEC840XF0
  • Components: STEERING
  • Summary: WHILE DRIVING VEHICLE THE STEERING BOX, WHERE IT ATTACHED TO THE SUBFRAME, BROKE. *AK

1985 Bmw 635 recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 1 recalls for different components of the 1985 Bmw 635.

1985-05-22
  • Manufacturer: BAYERISCHE MOTOREN WERKE
  • Components: WHEELS:HUBCAP/COVER
  • Summary: INCORRECT MACHINING OF THE SEATING SURFACE OF THE WHEELS WHERE IT CONTACTS THE HUB OF THE CAR MAY PREVENT THE WHEELS FROM MOUNTING SECURELY TO THE HUB. THIS MAY CAUSE THE WHEEL TO BREAK AND COULD FALL OFF. CONSEQUENCE OF DEFECT: THE WHEELS COULD LOOSEN AND A CRASH COULD OCCUR. OWNERS SHOULD NOT DRIVE THEIR CARS UNTIL REPAIR WORK HAS BEEN DONE.
  • Remedy: SCRAPE THE CENTER BORE OF THE RIM SO IT CAN CLEAR THE CENTER OF THE HUB.
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Additional sources

More sources of information about 1985 Bmw 635 problems:

E24 89 635csi PROBLEMS
E24 89 635csi PROBLEMS
https://www.bimmerforums.com/forum/showthread.php?2397628-E24-89-635csi-PROBLEMS

Feb 9, 2019 ... E24 89 635csi PROBLEMS. Thread: E24 ... Engine wise +1 by LYK NU 6. Tranny wise: Had ... Bimmerforums.com is not affiliated with BMW NA or BMW AG.

The headache-inducing, free BMW 635CSi that I refused to give up ...
The headache-inducing, free BMW 635CSi that I refused to give up ...
https://www.hagerty.com/media/opinion/the-hack-mechanic/the-headache-inducing-free-bmw-635csi-that-i-refused-to-give-up-on-thankfully/

Feb 1, 2021 ... Rob Siegel tells the story of the 1985 BMW that caused frustrated mechanics to throw in the towel … but he took as a challenge.

1985 635 CSi - Electrical problems
1985 635 CSi - Electrical problems
https://www.bimmerforums.com/forum/showthread.php?1038532-1985-635-CSi-Electrical-problems

Jul 7, 2008 ... Bimmerforums - The Ultimate BMW Forum - Powered by vBulletin. The Facebook Platform ...

635 csi transmission problems | BimmerFest BMW Forum
635 csi transmission problems | BimmerFest BMW Forum
https://www.bimmerfest.com/threads/635-csi-transmission-problems.484850/

Sep 16, 2010 ... Vehicle Year :1985 Vehicle Make : BMW Vehicle Model : 635 CSI Vehicle Color: Grey Vehicle Mileage : 127,000 Vehicle Engine : 3.5... 0 2K ...

Would you consider an '87 635 CSI L6 reliable as a daily driver?
Would you consider an '87 635 CSI L6 reliable as a daily driver?
https://www.bimmerforums.com/forum/showthread.php?2186315-Would-you-consider-an-87-635-CSI-L6-reliable-as-a-daily-driver

May 30, 2015 ... As far as DD a old 6 series, I wouldn't recommend it. Your money though! Good luck. ​ 1985 BMW 635csi || Auto || 200k || 15" Borbet || Delphin.

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