Au7o mascotAu7o
Known IssuesTest Hub demo
  1. Au7o
  2. /
  3. Known Issues
  4. /
  5. MG
  6. /
  7. MGB
MG · Known Issues

1977 MG MGB Problems: 1 Known Issue

1977 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026

Share:@au7o.io

1977 · All trims · All engines

Choose the year and equipment for your written issues and visual request.

No email neededHow interest is saved

Interest applies to the selected vehicle and configuration; it is not a reservation. Voting stores a first-party identifier for up to 180 days to prevent repeat votes. No account or email is needed. Clearing cookies or using another device may count separately. Privacy

Visual coming soon

Your interest helps us choose what to build next.

Visual Known Issues · Coming soon

$4.99/month plus taxes at launch · No payment today

Preview the XT6 example
Known IssuesMotorcycle IssuesDTC LookupDrivePricingAboutTermsPrivacyCookiesConsentData rightsCopyrightFeedback
Share:@au7o.io

Vehicle data and repair guidance on this site are compiled with AI assistance and may contain errors. Always verify with your service manual or a qualified mechanic.

Data protection representation

DataRep representative in the United KingdomDataRep representative in the European Union
Au7o · 2026
Built for DIY mechanics. Privacy-first.
Explore free Hub demo
Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1977 MG MGB has 1 documented issue. None of the listed issues is rated critical; this is not a complete reliability assessment. DIY maintenance guides at au7o.io.

In This Article

  • MGB Suspension1
  • Recalls4
  • FAQ
Get Started
Back to top

In This Article

  • Suspension1
  • Recalls4
  • FAQ

All 1 Known Issue

Filter:
ALL YEARS198019781977197619741972197119701968196719661965196419631962

On the 1962-1980 MG MGB 1800 B-series I4, the Leyland AKD 3259 manual identifies Armstrong double-acting lever-arm dampers at the front and rear. It says erratic resistance or free body movement requires the damper to be removed, checked and topped up; if fluid does not restore resistance, the damper should be replaced. This supports the generic worn or ineffective lever-arm-damper identity but not a universal failure rate.

Common Symptoms

  • corner-specific bounce and resistance compared
  • leakage, mounting, link and bush condition inspected
  • bench resistance rechecked after correct fluid and air purge

How to Fix

Inspect each damper for leakage and secure mountings, bounce each corner for uniform resistance, and check links, bushes, springs and tires before blaming the damper. If resistance is erratic or free, remove the unit upright, check fluid and work the arm through its stroke to expel air; replace the damper only if correct fluid does not restore moderate, even resistance. Do not buy a front or rear damper from this page; failed position, linkage condition and exact fitment must be confirmed first.

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerifiedReviewed Aug 2026
NHTSA Recalls4 recalls

SEAT BELTS:FRONT

WIDESPREAD LACK OF UNDERSTANDING ABOUT THE OPERATION OF WEBBING SENSITIVE AND DUAL SENSITIVE SEAT BELTS HAS LEAD TO NON-USE OF BELTS BY A NUMBER OF OWNERS. SOME BELTS RETRACTORS MAY JAM, BIND OR LOCK. THIS MAY DISCOURAGE THE USE OF THE SAFETY BELTS. CONSEQUENCE OF DEFECT: NON-USE OF SEAT BELTS SUBJECTS OCCUPANTS TO RISK OF INJURY IN EVENT OF AN ACCIDENT OR SUDDEN BRAKING.

Campaign #85V05900007/05/1985

FUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM

THE RETAINING SCREWS ON THE FUEL BOWL HAVE THE POTENTIAL TO LOOSEN, ALLOWING SEEPAGE OF GASOLINE FROM THE CARBURETOR.

Campaign #78V08900024/04/1978

ELECTRICAL SYSTEM:WIRING

THE OVERDRIVE WIRING HARNESS COULD CHAFE AND CAUSE AN ELECTRICAL SHORT CIRCUIT.

Campaign #78V16400002/08/1978
🔧
A mechanic who knows YOUR exact car
Answers tuned to your year, make, model & trim — not generic advice. Save your garage so it always has the right context.
Get ahead of MG MGB problems — free
Leave your email and we'll alert you the moment there's a new recall or known issue for your MG MGB. Free, no account needed.

Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.

Frequently Asked Questions

What are the most common MG MGB problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1977 MG MGB has 1 documented issue. The documented issue is: Worn Lever-Arm Dampers Let the Front and Rear Float. None are rated critical, but regular maintenance is recommended.

Is the MG MGB reliable?

The 1977 MG MGB has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

What is the 1962-1980 MG MGB Worn Lever-Arm Dampers Let the Front and Rear Float?

The Leyland AKD 3259 manual identifies Armstrong double-acting lever-arm dampers at the front and rear. It says erratic resistance or free body movement requires the damper to be removed, checked and topped up; if fluid does not restore resistance, the damper should be replaced. Severity: medium.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING: LAMP

Campaign #68V05500023/05/1968

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.